I just printed a few hundred and donated them to a local organization in town. A friend of mine is working with them and I asked if they wanted whistles and they were happy to get them.
Yes. Mine has worked amazingly well.
Same! I swear if I try to get close enough for a photo the cats will give me a look like "Don't you dare post that online!"
I sort of wish the tennis courts near my house did not also accommodate pickleball as it means we often cannot get a court for tennis!
A two color relief print on handmade paper.
Relief print on handmade paper.
I've never had an issue, but I've been careful with placement and handling.
Great use of 3D printing!
I did some math and the ones I printed probably came out cheaper than the online listing for 100 that a friend pointed me to.