I guess it's my turn to list some quirky character concepts ^^
Blink
Type: Mutant
Whenever the user blinks, they can choose to instantaneously change their current posture and their current position to somewhere else within three feet. Doing so swaps whatever matter was there previously with where the quirk-user was previously. They can't change their position into solid matter unless it has a very small amount of mass such as dust in the air or sediment in water. Blinking exerts an amount of effort equal to crunching two twenty-pound weights, but gives off a great amount of body heat.
Smoke Screen
Type: Emitter
The user has gill-like slits connected to their lungs on both sides of their torso, underneath their arms. Through these slits, the quirk-user can breath out a harmless opaque gas (I've yet to decide on a color, I'm thinking a fluffy pink might be fun) that blocks sight and muffles sound and scent to a degree that anyone within the fog, other than the quirk-user themselves, cannot see, hear, or smell anything further than two feet around them. The fog dissipates after half an hour, but the user can quicken the process by breathing the gas back in through the slits under their arms.
Kinetic Current
Type: Mutant
This quirk only applies to the user's limbs, from their elbow to the tips of their fingers and from their knees to the ends of their toes. Whenever there is a physical impact on any of these areas of the user's body, the user can conduct the kinetic energy through their body, like electricity through wires, to one of the other limbs and discharge it. This causes the force of the impact to be directed into whatever the quirk-user discharged it into, instead of the user's body. They can only discharge the kinetic energy directly into solid matter, and cannot discharge it at all if the limb the user conducted it to isn't in contact with any solid matter. The user cannot discharge energy from the same limb that received the impact, and they must discharge the energy within a very short time period after taking the hit.
Gonna be honest, I wanted to go into even more detail on these abilities (mainly Smoke Screen) because I love the sciences of magic systems, but I thought it'd be better just to post them and see what you guys think xD