I've been having fun this summer making decals out of flexible filaments. See Dragons for Everyone and Flower, Butterfly and Bee Decals.
I have also included thick versions for those who want to print in PLA or other filament. I think either version could also be used as a badge and pinned to a hat or jacket.
I create these designs to encourage people to try out flexible filaments or get some new interesting colors of flexibles. These are made out of SainSmart TPU. I just started producing sample Splash Spools for this brand. More info on flexyfilament.com.
Clean your build plate well before printing the thin versions. Wet the smooth side and apply to a clean window, mirror or other smooth wall. I have found sometimes they don't always stick and then you might have to use a piece of tape or thumb tack. That said most of the stickers I have printed have stuck.
We developed a great way to distribute cost effective quantities of flexible filament: Splash Spools. A generous amount of filament on a spool with a case so it's not flopping all over the place. Splash Spools store easily in a desk drawer, stacked space or even hang on a wall. Available on www.flexyfilament.com and Amazon. We stock NinjaFlex, Cheetah, Flexion X60 MakeShaper, nGen FLEX and Flexy.