Print these in flexible filament for the "flappy effect". This is a fun way to use up some extra ninjaflex you may have laying around the shop. Kids love to flap these cute finger toys. The lower the Shore Hardness i.e. Ninjaflex = 85A verses Cheetah= 95A the flappier the wings will be. The butterflies with the wider wingspans flat the best.
3d printing enthusiast specializing in flexible prints. Check out my flexible designs here on this site and my posts on Instagram and Twitter.