all sonic and shadow and silver Fusion Sprite by Bryan95549 on DeviantArt

Sonadilver, Shipping Wiki

Hexafusion sonic Sonic and shadow, Hedgehog art, Sonic fan characters

Sonic + Shadow + Silver Fusion Mask Products from grunty art

Hybrid Sprite 2 by Danny -- Fur Affinity [dot] net

fusioncontest entry sonic/silver fusion

Not related to silver but here's a fusion of sonic tails and knuckles : r/silverthehedgehog

Pokemon Sonaw Sonic Shadow

SONIC fusion KNUCKLES fusion SHADOW

SonAdow Sticker for Sale by SaiSaiChan

Combining 5 Sonic Characters Into 1! (sonic, Tails, Shadow, Knuckles, Silver)