As requested, a little more detail on how to make your own wood shim decorative letters for almost nothing in very little time. Next time I make these, I'll use scrap wood to make them a little more sturdy and saving me the time of drilling pilot holes.
It really is 4 simple steps:
1. Lay out your letters cutting as needed.
2. Drill an overlapping hole at each joint. Thin pieces of wood will need pilot holes.
3. Thread a nut and bolt at each hole
4. Tighten as needed to hold its shape
Obviously I used these in my garden but I think these would be especially great for party decor since they are cheap and impactful.