Reverse Geocaching Wedding Gift Box

A while ago, friends of mine got married. Like so often, we tried to come up with some extraordinary cool wedding present. They both enjoy hiking and geo-caching, which inspired us to make the following present. We found an awesome idea online, the reverse geo-caching puzzle. The original description can be found here:

The idea is to give a box to the couple. Inside the box there is a gift (whatever you like to give as a present.) The box itself is locked and has one button and a display. When the button is pressed, the box retrieves its geographical location via a GPS receiver and displays a distance to a checkpoint. The holder of the box has to bring the box to the checkpoint. When the checkpoint is reached, a new distance to another checkpoint is shown on button-press. After reaching a couple of checkpoints, the box opens when carried to the last checkpoint. The tricky thing is that only the distance to the points is shown and no other information like compass points etc. Therefore, the holder of the box has to press the button in different locations and derive the coordinates of the checkpoint from these relative information.

We re-implemented and customized this original idea to give it to our friends. This article describes the making-of, including some documentation of the actual puzzle-solving. This project was done by me and four friends of mine in a truely globally collaborative way. The contributors to the box were located in two different countries, three different cities. We created the box in two different geographical locations and doing collaborative coding and soldering sessions via video conferencing. Only shortly before the actual wedding ceremony, we came together for the final assembly (and some hectic last-minute fixing).


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Steampunk Dragon

I recently did another bodypainting. This time not on a baby belly, but on my friend Mickey‘s back. Colors were my usual Kryolan Aquacolors. This time I experimented a bit with sponges and additionally some eyeliner. It took about two hours and what loosely inspired by this painting I found on

Enjoy a look these photos, taken by Mickey’s husband. My thanks to Mickey for holding still for so long and giving me this opportunity to paint the dragon!

A close-up of the dragon:

The Fishbowl

A couple of days ago, I had another lovely afternoon of bodypainting a baby belly. My friend who has been the “canvas” for the “earth” picture two years ago is currently pregnant with her third child and asked me to create another colorful memory.

This time, it is a fishbowl! See the result and read about the making of later in this post. If you look closely, you can see the cat.

Fishbowl The colorful fishbowl.

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Mail from Turkey

This entry is about an artwork that is not one of my own, but of a friend of mine and fellow artist: Oona Leganovic. Last year, she undertook a long journey through east Europe and Russia. As a gimmick, she sent out self-painted postcard pictures. This is the one she send me, including the letter she wrote.

I am deeply impressed by Oona’s talent and drive as an artist. I was never good with watercolors, which is why her technique impresses me even more. Dear Oona, thank you a lot for this lovely piece of art.

Here be dragons

I recently had another chance to create a body painting on a friend’s baby belly. This time the picture was a Chinese dragon surrounded by waves. My friend Sara chose this, because the kid will be (or is now) born in the Chinese zodiac of a dragon and it is the year of the element “water”, thus a dragon surrounded by water.

Chinese Dragon (Close-up)

Chinese Dragon (Close-up)

As always, I used my Kryolan Aquacolors and water color brushes. The process of painting took about two hours. I started with the dragon itself, then the surrounding that with the white foundation, then the waves and finally some details of the dragon.

Before I started painting, Sara installed her camera to make a time lapse video of the painting. So, this time instead of “making of” photos, I present the “making of” video:

It was a pleasure to create the dragon painting. Thank you, Sara, for giving me the opportunity to make it!

By now, the little dragon is hatched from his surrounding water. ;) Congratulations to the parents. I wish you all the best!

Death Star Bodypainting

Last weekend, I had the chance to do another bodypainting. This time, my “canvas” was friend of mine who carries around an impressive baby belly these days. Since she is a real geek, she requested a Star War’s Death Star bodypainting.

The finished Death Star Bodypainting

I painted it with my favorite colors, Kryolan Aquacolors. We started with a light grey foundation. Starting with the foundation

Next layer where the darker areas and the laser eye in different grey shades and black and white.

Dark grey layer

After that, I added the highlights in silver color.

Adding highlights in silver

You have no idea how many “windows” a death star has …Finishing the highlights

The final result:

The final result

It was a great experience! I thank all involved people for this great day! Thanks to my model for her patience to sit still for nearly 2 hours :)

Painting the Earth


While browsing through my photos, I found a series of shots which were taken during one of my bodypainting sessions. Last year, a friend of mine was pregnant and I had the honor to paint the earth on her belly. I used Kryolan Aquacolor paint, water color brushes and small sponges. This is only the second body painting I ever made. Beforehand, I got some helpful hints from Oona regarding the materials. Thank you for that, Oona!

The master was an old globe that I inherited from an aunt of mine.

It took about 2 hours to paint the globe, including some breaks for the lovely “canvas” to rest. Even though her job was only to sit still, it was more exhausting than you’d expect.

In the end, even the big sister of the baby inside the belly wanted to take part in the painting.

The final result. One can see the fading ocean on the left bottom corner (fading created by using a small sponge) and the texture of the dried color.

Photos were taken by the father of the baby. By now, the earth’s baby is already born and about one year old. I guess one day, she will see the pictures and understand that she used to be a canvas.

I thank all people involved in this session for their enthusiasm and spirit throughout the whole day. It was a really nice experience for me and a great chance to do some bodypainting art. Thanks a lot!