Dust bunny

[1][2] They are made of hair, lint, flakes of dead skin, spider webs, dust, and sometimes light rubbish and debris and are held together by static electricity and felt-like entanglement.

[4] The movement of a single large particle can start the formation of a dust bunny.

[5] Dust bunnies are harmful to electronics because they can obstruct air flow through heat sinks, raising temperatures significantly and therefore shortening the life of electronic components.

[6] An American trademark for "Dustbunny" was registered in 2006 for the "Dustbunny Cleaner", a robotic ball with an electrostatic sleeve that rolls around under furniture to collect dust bunnies and other material.

[7][8] Dust bunnies have been used as an analogy for the accretion of cosmic matter in planetoids.