An unpopulated PCB, a few Reflowster stickers, and hard copies of the Open Source design documents and Bill of Materials. (Note: gathering the parts and assembling from PCB is not easy. This level is primarily for inspecting the board)
Reflow soldering and hacker's kit; just add your own toaster oven! Everything from the above reward, plus a USB cable for programming and PC interface, a tube of solder paste, and some tools we've found useful such as tweezers and molding picks. (provide your own toaster oven)
Special Edition Reflowster, with all the accessories and tools we can think of! This kit comes with everything from the above reward, plus an additional stainless steel thermocouple probe, a heavy extension cord, and a compatible toaster oven.