Replying to Is there any way to practice/train rails in the off season or just flips?

I have made a recent post about training this to do in the off-season and only really got training for flips on trampolines or like mountain biking and other sports to stay in shape. Is there any way to practice rails without having to build a backyard setup? I don't really have the resources or funds to build anything like that. ( I live in Iowa, everything is pretty flat anyway.)