Great last minute gift idea! Or heck, a surprise New Year's gift! And it only takes one hour and 20 grams of filament.

Customizable snowflake picture ornament. Use the stencil to cut out a photo (trace around the outside of the stencil, use the inside to line up your photo), pop it in there, and screw on the back. If threads are tight, either shrink the back by 1% or use pliers to screw it in. Photo area is approx. 30 mm. I recommend using adaptive layer height so the threads print better.