**Jason Baker beat me to a complete list, so there's no point in finishing this one!**

Here we go...

 1. Tetris blocks
 2. Green Lantern Power Ring
 3. The One Ring (should have got this one...thanks @N_Soong)
 4. Pokémon sphere
 5. Batarang (from Batman media)
 6. Cricket gun (from *Men in Black*)
 7. Turtle shell (Mario Bros.)
 8. Golden gun (from *Man with the Golden Gun*)
 9. Phaser (*Star Trek: TOS*)
 10. ..
 11. James Bond's Walther PPK
 12. Dagger from *Prince of Persia*
 13. ..
 14. Freddy Krueger (*Nightmare on Elm Street*)
 15. Infinity Gauntlet (Marvel Comics)
 16. ..
 17. Whip from *Indiana Jones* series
 18. ..
 19. Lara Croft's weapons of choice
 20. ..
 21. Donkey Kong mallot
 22. ..
 23. Thor's hammer Mjolnir
 24. Hal's eye (thanks @WadCheber)
 25. ..
 26. Anton Chigurh's pressurized air weapon from *No Country for Old Men*
 27. Ninja Turtles' weapons
 28. ..
 29. ..
 30. Light sabers (light and dark side)
 31. Casey Jones' cricket bat (from *Teenage Mutant Ninja Turtles*)
 32. ..
 33. ..
 34. Captain America's shield
 35. Buster sword (from *Final Fantasy*)
 36. He-Man's sword 
 37. Lion-O's sword (*Thundercats*)
 38. Excalibur
 39. Portal gun
 40. Master sword (from *Legend of Zelda*)
 41. ..
 42. Ghostbusters' proton pack