Either rope lights or the gemmy (or generic) fire/ice LED spots you can usually find for under $15 (or even cheaper) - especially the ones that do the cool rotating/color changing effects.
Should look into using PVC frames as they'll likely stand up to weather conditions a bit more than wire.
Also check out the bead styrofoam stuff for carving up into icy peaks/ice burg shapes. If you have any Tractor Supply places around, they generally get really large blocks of styro for trailer deliveries and will sometimes give away lots of them for free. Styro is carvable with large knives/heated hot knife or even heard of using a large serated bread knife, and can warp with a heat gun if you have one of those. Spray paint will cause it to melt tho, so unless that's a look you're going for, you'll want to watch any painting (use brushes for a bottom coat sealer).
May also keep an eye out on craigslist or other sites that give away construction materials to see if anything usable pops up.
Should look into using PVC frames as they'll likely stand up to weather conditions a bit more than wire.
Also check out the bead styrofoam stuff for carving up into icy peaks/ice burg shapes. If you have any Tractor Supply places around, they generally get really large blocks of styro for trailer deliveries and will sometimes give away lots of them for free. Styro is carvable with large knives/heated hot knife or even heard of using a large serated bread knife, and can warp with a heat gun if you have one of those. Spray paint will cause it to melt tho, so unless that's a look you're going for, you'll want to watch any painting (use brushes for a bottom coat sealer).
May also keep an eye out on craigslist or other sites that give away construction materials to see if anything usable pops up.
