Here is a photo of my Marbled Crayfish, Margaret:
Soon I am hoping to get a Blue Crayfish (not in the same tank as the Marbled of course).
And just for fun a picture of one of my Ghost Shrimps in my betta tank:
The Ghost Shrimp are in this tank with the betta:
Bettas - Giovanni (HM), Burly (HMPK Giant), Potato (EE)