Gag target with Band-Aids. Ensure that some Band-Aids are loose in mouth: Bumps up choking hazard.
Cover sword with Band-Aids. Proceed to decapitate target.
Cover arrows with Band-Aids. Proceed to shoot through target's heart.
Cover dagger with Band-Aids. Stabby stabby.
Tie Band-Aids together to form a garrote wire. Proceed to strangle target.
Tie Band-Aids together to form strong rope. Tie rope to target's foot. Pull rope. Watch target fall.
Poison Band-Aid. Place on target's wound. Wait.
Find out if target has a severe allergy to adhesive. If no, you're done. If yes, slap target in face with Band-Aid. Watch target die from anaphylactic shock.
Stuff Band-Aids into target's eyelids.
Cover Band-Aids in slow-burning acid. Proceed to stuff acidic Band-Aids down target's throat. Wait for results.
Place unremovable Band-Aid around target's fourth toe while target is sleeping. Results: constant annoyance, sweat.
Give target paper cut with side of Band-Aid. Bonus points if paper cut is in the most inconvenient place possible, such as between fingers.
Put a Band-Aid in a tasty cake. Give cake to target, have target eat cake. Watch target choke on Band-Aid. (Side note: Do not get tempted to eat cake yourself. Do not mistake Band-Aid cake for non-Band-Aid cake.)