In Lake County it is (lowest company price or about 100 gallons) $297 and $347. SHOP AROUND. $2.15 in Chico (Tri Flame Propane) min 100 galons. $2.86 per gallon. The price changes weekly, sometimes even daily. And most definitely by company. In Tehama County it should be around $2.24 as of June 21, 2010. In Shasta County it should be around $2.34 as of June 21, 2010.
If possible, be selective in which cat you ate feeding, or you might end up as a cat hangout. If you already have house cats, they might not appreciate the social or territorial competition. For stray cats any brand of regular cat food works. Also if you ate fish recently the scraps from that meal would be fine. Stray cats don't eat on a consistent basis, so they really would be fine with anything. Water is also necessary.
The husk and stray are counted as sub-variants of existing mobs as opposed to entirely new mobs, hence why you are unable to simply type /summon Stray or /summon Husk. There was supposed to be spawn eggs for them, but it seems they were removed either intentionally or by accident in the final release.