List of items sorted based on mod version added!
Version 1:
Pandora's Box: Somewhat like Chance cubes, and lucky block, just nicer? It is a block that spawns in the world like ores and once broken does something random.. up to 75 different possibilities!
Rhodium Tools: Basically a better version of the diamond tools, consists of pickaxe, shovel, etc.
Rhodium Armor: Again a better version of the diamond armor, however it provides potion effects
wearing the full armor set provides the player with { Night Vision, Jump Boost, Speed, and Haste }
Rhodium Ores: There's two ores, Rhodium Ore and Rhodium Coal Ore, the first is the main ore type for most of the tools and the coal variety is basically an enhanced version of coal..
RhodiumTNT: somewhat like OpenBlocks version of the sponge in a way.. When detonated it removes Liquids in an 11x11x11 radius
Hammers: There are hammers!! Inspired by Tinker's Construct these hammers mine a 3x3 area just like those hammers do, there are several tiers, consisting of { wood, stone, gold, iron, diamond, rhodium } tiers ascend in that order as well..
PopTarts: A food item that provides a great source of vitamins and nutrients!! (Don't ask why, my brother wanted these added for some reason haha!)
Anti-Potion: essentially a milk bucket that removes all potion effects, however milk buckets don't stack.. But these do! (stacks up to 16)
Condensed Wood/Cobble: basically crafting component blocks, not much to them, maybe they look nice?
Version 2:
Phazer: uses (ender pearls/bullets) to shoot at targeted positions.. you can ender pearl or you can 'phaze' through blocks useful for being sneaky!
Enchanted Scroll: want potion effect benefits from the armor, but want to wear something else?
this item allows you to toggle on/off the same type of effects you would receive wearing the armor
Enchanted Paper: crafting component for the enchanted scroll!
Version 3:
Ender-Bullet: new ammunition for the phazer!