Geek memorabilia for auction at Silicon Valley Comic Con 2017

This artist's proof chrome stormtrooper helmet is a limited edition, commemorative piece for the 40th anniversary of Star Wars. Anyone who registered for SVCC's live auction had a chance to win it.

Jigsaw's reverse bear trap, opening bid $35,000.

Eww.

One of the hundreds of Hogwarts invitation envelopes sent to the Dursley house, $399.

Full Scale Rodger Young Escape Shuttle, opening bid $15,000.

Left to right: Wilson, not for sale. Clapper board, not for sale.

Mr. Fusion, opening bid $8,000.

Question mark hoverboard, opening bid $5,000.

Daniel's bandana, not for sale.

Mothership alien miniature, opening bid $4,000.

Tyrannosaurus Rex toe claw, opening bid $4,000.

Stormtrooper helmet, opening bid $70,000.

Close-up on the surprisingly shoddy paint job.

Red power ranger belt, opening bid $1,200.

"Revenge of the Jedi" clapper board, opening bid $5,000.

Korben Dallas' stunt blaster, opening bid $4,500.

T-800 Effects head, opening bid $5,000.

From left to right: Future Pepsi Perfect, opening bid $1,400. Lou's phonebook page with Doc's address, opening bid $500. Grays Sports Almanac, opening bid $4,000.

Vulcan ear appliances, opening bid $100.

U.S.S Voyager Dedication Plaque, opening bid $2,000.

Barcode license plate, opening bid $800.

Production used clapper board, opening bid $1,000.

Helmets, not for sale.

Original hand-drawn storyboard, opening bid $800.

Treasure coin, opening bid $300.