If you go to Michaels or Hobby lobby, they have hanging vine type plants. The problem is price. They usually run from $3.99 on clearance to $12.99. Try looking in a salvation army store or Goodwill store and see if they have any old ones. I also have some aquarium pieces that look like tangled viney roots. They are good. But Like Craig said, find a swampy place near your home. You may have to wait a little farther into summer, though!