The junk atop my bookcase... and more junk I'd like to have there

From left to right, top shelf:

1. A replica of the 1960's Batmobile
2. A spent shell casing from some WWII artillery
3. My Pedro of Los Straitjackets mask
4. My WWII era gas mask, courtesy of a trade to Don Kincaid for a metal detector and a book about samurai philosophy
5. A samurai statue from Garden Ridge
6. A small white box containing a trilobite fossil from last year's rock swap
7. A post card from the Superman museum
8. two microbrew bottles that look like medicine bottles from the 1800's
9. A mug depicting a man picking his nose
10. My memento box

Second shelf:

1. Futurama postcard
2. Stegosaurus and T-Rex Carrie gave me for Valentine's Day in 2009
3. Triceratops and Brontosaurus, same source

Crap I'd like to display on my bookcase:

1. Rusty old lantern or carbide lamp
2. Clunky, steampunkish welding goggles
3. Large fossil or geode
4. The other four Los Straitjackets masks