These are PacMan Sprite badges, which I have created using Perler Beads (melted plastic beads). Here is (from left to right) PacMan, Ms. PacMan, Jr. PacMan, and YumYum (from Jr. PacMan).
I am selling these badges for wear at this year's Megaplex: Retro Arcade! $5 for each. This is available for preorder, which will be delivered to Megaplex. If you are not able to attend, add $2, and I'll mail it to you in the US. Payments by Paypal is most prefered.