Begadi Airsoft Grenade Bumper / Protector

I recently bought an airsoft grenade from Begadi and even though the shells are relatively cheap to replace I wanted to protect them a little. The caps are designed to friction fit - wich they do really well. If your printer is not as precise, you can just wrap a bit of electrical tape or whatever you have around them and the grenade to make them stay in place. The green one is the latest (and the uploaded) version, I just also posted the pics of the (older) blue version for some color reference. Manual tree supports are needed for the one overhang, the other ones can be ignored as they just result in some loose tpu strings which can easily be pulled off.