These are Galaga Sprite badges, which I have created using Perler Beads (melted plastic beads). Here is (from left to right) the Level 50 Rank, the Level 30 Rank, the Level 20 Rank, the Level 10 Rank, the Level 5 Rank, and the Level 2 Rank.
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.