A couple of things you might look into for spawning containers. I have not used these, but think they might work well.
One is a plastic hot water heater tank basin. The basin that keeps your floor from getting wet in case your hot water heater leaks. I think they make them in more than one size. Check the big box stores like Lowes or Home Depot.
The other thing I have thought of that I think would work well but it is not round but square or rectangle. It is the temporary concrete mixing tubs. I think they come in a couple of different sizes. Have seen them near the concrete stuff in Home Depot. They are used to mix up small batches of concrete mix with a shovel.
At the end of winter, if you can find any of the kids round snow toboggens (sp?). Probably too expensive unless they are on the discount rack when the snow season ends. Made of tough plastic.
Last edited by snrub; 02/12/16 02:42 PM.
