Think of this as a
"First time builder's supply guide for Scratch-Building: The Bare Necessities Edition." The shopping list of supplies for the first-time foam board builder.
I'm opening a discussion about the basic necessities for beginners who are buying supplies for their first foam board scratch build.
- Materials that are readily available (at local hardware/Wallyworld/Dollar stores) and why they will be needed.
- What are the start-up expenses.
- Brand name comparison (which brands to avoid).
I would like to avoid getting into discussions about materials that would be needed when the beginner gets more experience (i.e. Fiber glass)
So to get things started, here is the list of materials that I know will be needed for my first shopping list:
1) Foam board from $Store
2) Razor blades. The extendable type with snap-off blades. Be sure to buy a package or two (or 20) of replacement blades.
3) Packing tape. Many people seem to like the $Store tape for this. A lot of people report that it sticks to the foam board very well.
4) Glues/Adhesives. This is where a beginner will start to have a lot of choices.
EDIT: Hot glue is a must 
Gorilla glue ("GG") and UHU por both seem to be mentioned often in build-logs. I have not priced these out yet, but I believe these will probably be the most expensive materials needed. Cyanoacrylate ("CA")...the foam safe version and possibly the accelerator ("Kicker"). Again, I have not priced these out, and don't know if they are available at a box-store like Lowes or Wallyworld.
5) - Straight edged rulers of different lengths. The aluminum rulers seem to be a popular choice. Not priced-out yet.
6) Popsicle sticks from the $Store.
7) Bamboo skewers from the $Store.
8) Toothpics/stick pins. Used to pin pieces of foam together while the glue sets.
If you have any more suggestions, please add to the conversation. And remember...this conversation is for helping a first time builder buying their first kit of supplies.
Cheers, Stew