If you are afraid of damaging a stove, the White Box is the one - I can stand on mine.

That said, I'm a total clutz and have yet to damage any stove. Kick one over, yes - but I haven't lost or smashed any of them. And if you smash a Fancy Feast the replacement is easy to come by.

Another one I have and didn't mention - the Caldera Cone 12-10. Awesome burner, boils nearly a liter of water efficiently and the cone doubles as a pot stand, the case doubles as cup and bowl. A bit on the pricey side but you get them to match your pot.
"In the beginner's mind there are many possibilities. In the expert's mind there are few." Shunryu Suzuki