You have several options for a neat clean canopy attachment. Glue is an option if you don't need to remove the canopy again. Zap makes a nice product specifically for the purpose. Here's a [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXCX70&P=ML]LINK[/link] I've used it before and it dries clear. The drawback is that you need to have a good bonding surface for the glue to grab. You can also use small screws to install the canopy. Harden the wood with CA and you should have a pretty solid mount (or add extra blocks behind mounting locations). This will allow you to take the canopy off again should you need to.