Glider kitchens somewhat control some of the mess.
The first time I used a glider kitchen, I took it out the next morning and looked inside, and could only think "Challenge Accepted!" The inside of the glider kitchen looked like the inside of the blender after I make their food! I do not believe it would have been possible for them to get more food on the top, bottom, side, inside, outside....
But - they are little magicians! Somehow they can make that big a mess inside the glider kitchen and STILL have reserve left over to throw at the walls!