When I was in college, I had an idea to use all the surplus "SIMM" memory in single storage device. I had a lot of modules laying around. A few months later, the first USB flash drive hit the market. I dropped the idea.
But we all still have a lot of left over memory of other sorts that should be combined to create something useable. Designer Fang-Chun Tsai of Yanko Designs has come up with a device, The Collector, that will combine all the left over, unused, micro-SD cards into a single USB flash drive. This is just a concept, keep in mind. As designer states about swapping SD cards out of the device, "Not sure how it deals with partitioning unless there are some smarts built-in to deal with hot swapping."
This is a concept that should be made. I have a variety of micro-SD cards not being used right now on my desk. (a 4GB and two 8GB cards)
Let's take another level. How about a USB/SATA/PCI-E board that will allow for any and all forms of memory to serve as a single "harddrive." That includes all the SIMM and DIMM modules we all still hold onto for some reason. Maybe my original idea will see the light of day as well.
Yanko Designs is action-packed with amazing concepts that will definitely inspire you. For example, a standard size rechargeable battery that is also furnished with a USB port to also power different types of electronics.