While growing Dahlias, bunnies were destroying every fresh sprout. I designed these protectors so that bunnies couldn't touch the primary stem and yet there was still a way to water the plants and then eventually remove the protectors once the plants got big enough. These worked great!

I use 4x garden stakes like: these to hold the protectors down. Loop the stakes through the grid. 

These are best printed with the top on the build plate and should not require any support. I have tested with PLA. Note that due to the intricate nature of the walls, you will need to have a reasonably well tuned printer.