Slightly, Tightly Built Box On Wheels

So, this is the original concept that I used to snag and transport the loose butterfly mission. If you see it in the sky about a meter up like I did, at some point it flies down to ground level. I didn't realize this and got halfway done building a rocket box on wheels that I ultimately abandoned once I realized it stays relatively low. But I used what parts I had, so it's a very rough design that could likely improve. But this was how i got it done. It seemed a bit daunting to take such careful precaution to make sure the lid and front closed tightly against one another, since I didn't want to chance it squeezing out a 1x1 hole. ONLY WARNING: Since editing your rover forces whatever you carry to reset outside of your rover... if you flip this thing, there's no easy way of getting right side up again. So might consider adding a little mechanism to prevent rolling. Might be a bit easier approach than chasing it around waiting for it to make a wrong move... but I did it. And with a little luck, and this box... you can do. lol