Anyone know how to do this?

I'm currently conceptualizing the internal pvc structure of a cake for next month, but the only thing puzzling me is how to attach the cake board to the top of the pvc pipe.

I'm assuming you cut a hole into the board for the pvc pipe to pass thru, but how do you secure the board to it without it slipping down the pipe? I'm thinking I need to attach a flange to the top of the pipe, then affix the cake board with a nut and bolt? Is this the best way to go? Am I making any
sense?

Hope someone can help!

you need a flange:
http://www.lascofittings.com/default.asp?contentType=Catalog&strSearch=hdnItemID|10011973&strItemAction=detail&prevStrSearch=Submit|Search||txtKeywords|flange

you bolt or screw it to the board

Thanks! That put my mind at ease. Although the next question I have is attaching pipe fittings (like pvc elbows) to the pipe. Do they fit snugly enough into each other that they won't move around? Or do I need something else to secure the pipe fitting to the pipe?

If you push them together really hard they should be ok. If you have to remove one needle nose pliers work well. If using a connector like a 4 way you can actually screw a plastic or wood cake plate onto it. Cover the screw with a piece of tape.