The link below is probably the easiest for your situation.
You can literally use any kind of container that will hold water but space is what is important. And it does not have to be that large either. You can have mini-bogs by using a large used food container, such as one of those large macaroni salad plastic containers, and find a pot that will fit inside of it. using 50% peat moss 50% river sand as the substrate for the pot and plant with Venus Fly Traps or with Sundews and yet be small enough for a table top.

Here is a link that might be useful: A simple bog garden

Thank you terrestrial_man.

Blueangel