Maybe you can stand it on its end so that it's a taller enclosure. The feel safer up higher off the ground but you have the idea. Using the same items you have there but only with the critter keeper on it's side.
I actually thought about doing that, but with how small this critter keeper is there would be absolutely no floor space. Not even enough for food/water.
1.1 Fire Ballz 1 Pastel
1 Mojave .1 Normal
.1 Pinstripe 2 Corns
.1 Jungle Corn .1 Pueblan Milk
.1 Rosy Boa 1 False Water Cobra
2 Painted Turtles 1 Stink Pot
1 Miniature Pinscher http://www.youtube.com/1980norcal