I bought dry ice to put some pinkies to sleep so that I could freeze them, I drove 20 min to get the dry ice and spent $5 on it. I needed it a couple days later, but it had all sublimated! I only have a dozen or less mice to freeze at a time, and so dry ice apparaently isn't going to be cost efficient. How else can I kill my mice(with them feeling as little pain as possible) and do it without a lot of money? I suppose that with adults I could get a mouse trap, but those don't always kill them right away and can get messy, but what about pinkies? I need ideas! Some people use a gas chamber, how do I make one?
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"Let us step out into the night and pursue that mighty temptress, adventure." (Albus Dumbledore)
My menagerie 
2.1 Ball Pythons 1.0 Amazon Tree Boa 1.0 Corn Snake 1.0 Dumeril's Boa 1.2 Bearded Dragons(and 11 eggs!) 2.1 Crested Geckos 1.2 Sudan Plated Lizards 0.0.5 Eastern Painted Turtles 1.1.5 Eastern Box Turtles 1.1 Eastern Red-spotted Newts 1.0 Northern Mockingbird 0.3 Chickens 2.0 Cats 1.1 Ferrets 1.4.14 mice 0.0.34 London Shubunkin goldfish


