Crystal Sonic (Archie's Sonic the Hedgehog) is the result of Metal Sonic being altered by the Naugus Twins' Crystalmancy.
The Swamp Thing (DC Comics) attained its body as Alec Holland through the mixture of his Bio-Restorative Formula and the machinations of the Plant Kingdom Embodiment known as the Green.
Coldstone (Gargoyles) was created by Xanatos and Demona by combining science and sorcery.
A Skrull (Marvel Comics) undergoing the Infiltration Ritual, a mixture of science and magic that imbues them with the powers and memories of a selected subject; thus, while shapeshifted, the Skrulls are rendered undetectable by Iron Man's technology, Spider-Man's spider-sense, Professor X's telepathy, Wolverine's animal senses, and any other conceivable forms of detection.
The Sword of Tengu (Teenage Mutant Ninja Turtles) was forged by combining Earth sorcery and Utrom technology.