It is perfect, delicate, simple, small, it just works, and is not something that looks out of place in our room. I'm not sure if it is 100% leak proof with the original design, I added an extra wall before printing, and also changed the filament settings to increase the flow ratio a little bit to make sure that there were no easy leaks after printing. I don't remember now if I added ironing of top surfaces, but you can definitely test with those settings and I hope that it works perfect for you. We've been using our plate for over a month, no complaints.

Excellent design, my kids love it. It's very lightweight and goes faster than most other designs. The tires have a good size (and also light) and it also works on short carpet, not just tile/wood/flat floors. Printing time is just like most of other similar cars but I definitely recommend printing them at least in pairs to save time and let your kids play with more than just one car. Depending on your printer, the filament, and the quality that you choose to print, you might want to file a little bit of the part where kids put their mouths to blow the balloon, as it could be a little rough (again, depending on your print settings).