Thinking Outside the (Existing) Cube

I asked ChatGPT for a reasonably priced source for 2.5" x 2.5" x 2" CFC.  This size is expensive.   It made an interesting suggestion: epoxy together 1/4" sheets, clamp and let them set. Of course 1/4" sheets are usually 6" x 6" so you would need to use the rest of that 6" x 6" x 2" sandwich to make this economically sensible.  If there was a source for 3" x 3" or larger scraps, you could cut them to LCM, and make sandwiches. 

This would be not be a strong a solid piece but for most applications it would be pretty darn strong and stiff.