jasonbuckner over on blog.adafruit.com uploaded this how-to guide for making 3D Warp Pipe planter with a 3D printer yesterday. This was a very awesomtacular idea considering the recent release of Super Mario Maker and the recent 30th anniversary. Just a neat find I decided to share, check out the guide they've got over there and if you've got a 3D printer this would sell great on eBay.
Game on and Keep it Rehl!
"This is a Super Mario Warp Tube planter and Brick Trays. I created two different trays: one with a base and one with an open hole that you can add your own tray.
Designed in Sketchup."~blog.adafruit.com