Awwww. My kids have always had the non-fur type pets here too. The oldest was VERY happy with it but then she was a bug and insect/slug/snail/lizard freak so.....
The hermit crabs were alot of fun..... until one got out and crawled up the curtain and died in the curtain rod. We completely emptied that room four times to find it (and the fact that the smell drove the children into my bed).
Guinea pigs are cuddly... (though timid and need very gentle handling)... and a girlfriend of mine had hers on a stand with wheels that kept the snakes away, AND she could wheel them into the garage in heatwaves or cold weather.
Just keep swimming... just keep swimming.. just keep swimming....