I've built my share of dev carts "repro style" i.e. donor cart with a FlashROM replacement, but I've been meaning to build a proper bare prototype cart for awhile now. Nothing too fancy, just a cart edge broken out to a standard 2x31x0.1" footprint with a SuperCIC and a large empty prototyping area. I had to order a batch of 10, and I'll probably never use them all. If anybody wants one, shoot me a PM, I should have them within the next week or two. If this violates any board rules about selling, I apologize, and feel free to remove this.