Or at least get you into nerd pride movie night.
Step 1: Acquire Keyboards
Whatever. Find the junk pile of any high-tech community, and you can probably find quite a few keyboards that no one wants anymore. You'll need one keyboard for each of repetition of the most common letter in your name. "WestfW" needs two keyboards cause it has two W's. "Mary Ann" still only needs two keyboards, but "Beekeeper" would need 5 to cover all thoses E's.
Step 2: Remove and wash keys...
If you're making more than one badge, or are likely to EVER make more than one, it may be helpful to make SOME effort to sort the keys into some sort of holder.