Mason the Hedgehog
Mason the Hedgehog is a 444-piece Ethereum NFT collection by the artist yxji. Its OpenSea description calls Mason “the least controversial (more legal) Mascot of HarryPotterObamaSonic10inu. Originally created as a companion to Sproto Gremlins and bro just grew into this chaotic rascal that everybody loves.”[1] Sproto, the mascot of HarryPotterObamaSonic10Inu ($BITCOIN), and the Sproto Gremlins are the collection's starting point.
| Floor | — |
|---|---|
| Floor (USD) | — |
| Top bid | — |
| Top bid (USD) | — |
| 24h floor change | — |
| Chain | Ethereum |
| Contract | 0x8696…d152 |
Mint
Holders of any of the 3,333 Sproto Gremlins could claim a Mason for free. On Aug 1, 2026 yxji reported 100 vault pieces plus 337 claims and said the mint would switch to a public phase on Aug 4 for 48 hours.[2] Every mint in the holder and public phases entered a raffle for one mystery Sproto Gremlin and five Masons from the vault.[3] On Aug 7, 2026 he announced “Mason Mint has been closed at 444”, with the reveal 24 hours later[4], and the next day he said the raffle had been drawn with Grok and won by @Bidnehhh.[5]
After the reveal he wrote that when the collection expands, “the 444 are getting 444 custom 1/1”.[6]
Traits
Each token's metadata lists five traits: Antics, Top, Face, Head and Kicks. Mason #1, for example, has the antic “TableClock”, a bucket hat and “J4” kicks.