This project took less than three weeks to construct and costs under $300. Besides the mylar balloon bodies, it's made of mostly salvaged junk, old plastic containers, pvc pipes, foam mats and dollar store items. As with all of my instructables, there are no specialized tools, computer programing, airbrushing skills or complex electronics required for this build.
Step 1: Research
Step 2: Spidey
Follow the enclosed instructions, but fill up the balloons with a regular air compressor instead of a helium tank. Since it won't float, you can skip attaching the weights as described in the last two steps. Finally, hang the finished figure onto the wall with some fishing line.