My grandmother told me she would put put water and steel wool in and turn it on, so it would not only self clean, but also self sharpen. I have never dared actually try that though.
Step 1) buy a dishwasher. Step 2) use blender. Step 3) put blender cup in dishwasher, seperating blades as need be. 4) put a tidepod in dishwasher. Step 5) push start. Step 6) take it out of dishwasher. Step 7) redo steps 3-6 until step 2 can be repeated.
Step one: destroy the connection between the mount and blade on a set of your blender blades
Step 2: weld a new "blade" that is basically just a bar with a wide end on it to the old mount
Step 3: mount the sponge on the new blade
Step 4:...
Step 5:profit
Step 2: weld a new "blade" that is basically just a bar with a wide end on it to the old mount
Step 3: mount the sponge on the new blade
Step 4:...
Step 5:profit