I’ve been making these puzzles all weekend in different sizes and with different materials.
I’ve placed a quarter (which is roughly the size of a euro) near the puzzles so you can get an idea of the size they are.
Big size (20 pieces)
The back for the shown above puzzles looks like this:
Medium size (30 pieces)
I found the vintage pictures I used on this puzzle at The Graphics Fairy.
This one is still unfinished:
Fairy size (30 pieces)
This one is not finished yet. I plan on making about 5 fairy-sized sets but finding teensy pics is challenging!