Undertale AU: Rewind!Sans - Color Test by WishingStarInAJar -- Fur Affinity [dot] net

Undertale AU by MiniS42 on DeviantArt

AU Sans by SomeRandoPxrson - Pixilart

Good Smile Undertale: Sans Nendoroid Action Figure, Multicolor

lico on X: #Undertale AU where everything is the same but the colors are inverted and the personalities are the opposite of canon (concept by an anon on tumblr). / X

Undertale Sans, Papyrus, and Frisk fullbody stickers — PoetaxArt

Sans/DiNitale, New Undertale Fanon AU Wiki

Nendoroid sans

AI Art: Sans Undertale by @user-1648469641447927099

Undertale Sans Action Figures Building Block Sets, Blue Skull Character Horror Game Model Toys Monster Anime Building Kit Compatible for Lego for Boys Grils Kids Age 6+ (185 Pcs) : Toys

Former Undertale fan ranks Sans AU's. Ask anything. (Also, just to clarify, I am NOT an AU fan. I used to be, being the reason I know some. (Also also, I did