Gyre comes through again and even though they're not Joes, they are Joe parts.
Podcast: JoeDeclassified: SPEC-OPS » Blog Archive » Ep7/ DESERTS AND DINOSAURS
Pictures: JoeDeclassified.com • View topic - EPISODE 7: DESERTS AND DINOSAURS
And over at Hisstank someone showed a JP jeep based off the Vamp:
HissTank.com - G.I. Joe - View Single Post - More Jurassic Park Figures Revealed