Update V5: I finally managed to make my own bunny. Based on the Standard bunny in meshmixer. I've straightened the ears so it prints easier, created the mesh and implemented the same lock as in V3. If printed at full size the inner diameter of the opening is about 30 mm, so you can put some nice things in ;-)
Also this bunny should be possible to size down up to aprx. 50%, at least on my printer.

Advantage in my eyes:

• prints a bit faster
• thicker structure allows sizing down
• large opening for goodies

Any comments or Pictures of makes would be greatly appreciated.

Update 4: Another additional model more suitable for sizing down. I'm printing one at 50% atm. Again the inner lock part is alredy sized down and there is a complete model as well.
This bunny is based on the Tron bunny by gpvillamil and was editied in Meshmixer and Tinkercad. Same locking mechanism as the other bunnies.

Update V3: Additional model with larger opening for bigger goodies. With my printer scaling down to aprx. 80% is possible, depening on your printer you may be able to go lower.
For ease of print I've added a complete model so you only have to wait for one print ;-).
Please be aware that in V3 the inner lock part is already sized so it should fit without further reducing the size.

Update V2: Modified the lock mechanism a bit as it didn't work out as I thought it would. Hopefully this Version will fix the issues.

Original:
This is a Remix of the Voronoi Easter bunny fixed.

I've simplified it in Meshmixer so it can be edited in TinkerCad and then added a locking mechanism (Remix of: https://www.thingiverse.com/thing:1173662) so it can be filled with goodies - and they can be taken out without destroying the Bunny. Sorry, Enzi1984, I liked your Idea but I hate to "kill" my prints ;-)

His make: https://www.thingiverse.com/make:325019

All credits go to the original creators of the models, I've only added them together.

When printing the "inner" part make sure to reduce the size a bit, depending on the tolerances of your printer.

If someone could clean up the model a bit I'd be grateful. This is my first design and I'm still fighting with the Details.