Replica Halo Spike Grenade This nice Halo spike grenade is up for grabs on eBay. Before you get too excited -- it's only a prop. Not the real thing. But it's 38 inches long and made from PVC pipe, urethane, aluminum and fake leather, so it makes a good impression.Link via technabob Comments (0) Commenting is closed. Click here to view up to the first 100 of this post's 0 comments We hope you like this article! Please help us grow by sharing: Tweet Get Updates In Your Inbox Free weekly emails, plus get access to subscriber-only prizes. We won't share your email. You can cancel at any time.