Here is an idea I used from searching the web that works pretty good for holding some parts down.

Using craft wire you can find almost anywhere including Wallyworld.

Poke it down through the holes and just twist underneath to tighten.
The method Retro shows is outstanding and less tedious too. I bought this pack of assorted dowels at Wall World to have a variety of sizes.

Thanks for all the input, will be a great resource I think.