I Like this planter/greenhouse which is available at Costco. However, I think I could probably make something pretty similar with wood/straw bales/or? as a base and pvc pipe/heavy mil plastic as a top (and it would be much cheaper). Additional note: I just got a grommet kit from Walmart Sporting Goods to attach grommets to the plastic. I can then attach it to the frame with wire or twine.