[PTTG]

The blade could afflict enemies with a compulsion to refuse to use ranged weapons against its wielder.

The cryopod probably ended up getting what is effectively a slow-time enchantment, causing it to function long after it should otherwise have failed and exposed her to enough cosmic rays to scramble every cell.

The ship's uniform, badge, or other insignia would represent the final resting place of thousands of people. Perhaps it provides a connection to their spirits whereby they communicate to the bearer, granting knowledge and experience -- and also critique. Makes even more sense if that item already doubles as a communicator, a la Star Trek.

More generally, if an item doesn't otherwise have strong resonance with a magical use, it probably only accumulated energy. I'd make many of the items large, but single-use, powerstones.