1 & 7) Twin Knives. supernaturally sharp. Not like "slice an atom" sharp. More like "highly effective dagger" sharp. don't try prying doors open with tehm, but they'll cut pretty good. 1 is better at stabbing/piercing and 7 is better at slicing/slashing.
2) Blade of Bright Judgment: very sharp and carries a lightning charm. Can discharge elecricity into a target 3-5 times before needing recharged. Will recharge one charge every two rest hours, or a full charge if attached to a power source.
3) Knife of Spider Summon. A fragile knife. best you don't actually swing it at someone, lest it shatter. But held in both hands, you can summon a variety of spiders to your location.
4) Heat Knife. again, not an effective combat weapon, but useful for such things as combatting frostbite, making s'mores, getting that cup of coffee juuuuuust right.
5) Dagger of Illuminating Murder. While wielded, you can see in total darkness, and can shroud yourself in unnatural darkness.alternatively, the dagger can emit a blinding light, aimed in the direction of your choosing. this dagger definitely likes to stab things.
6) Stiletto of Noisy Ancestors. this thing starts mumbling when drawn. The sound rises over time, up to the sound of dozens of irritable geriatrics in heated argument.

Juggler's Trick Knife. A knife with a variety of prestidigital effects. Nothing directly harmful. Fun at parties.