I found a Japanese website (translated) where you can download photo frames to be printed and fold by yourself. Some look really nice, I find.
Links:
Following links translated with Google Translator:
Paper Museum – Overview categories of photo frames
Overview Wedding Photo Frames (The button with the text (A4/PDF/2 photos) next to it downloads the PDF file with the photo frame)
Instruction on how to fold the photo frames
Following links original (Japanese):
Paper Museum – Overview categories of photo frames (Japanese)
Overview Wedding Photo Frames (Japanese)
Instruction on how to fold the photo frames (Japanese)








Select appropriate paper sheets.
Roll and fold the paper sheets to paper strips of equal width (see
Coil one paper strip firm around the glass and fix with tape.
Tape the hoop very well.
Slip the hoop over the glass again and coil the second strip of paper very firmly around the first hoop, tape very well, too.
These are both hoops, one can be slipped exactly over the other.
That’s the way everything looks from the backside.


