Sold:

http://backpack.tf/profiles/76561198254795970#!/compare/1479081600/1479168000 - sold with 4 keys for Galactic Codex Universal Translator = 24 keys

http://backpack.tf/profiles/76561198254795970#!/compare/1478822400/1478908800 - sold with 2 keys for Strange Australium Scattergun = 24 keys

http://backpack.tf/profiles/76561198065567076#!/compare/1477699200/1477785600 - sold for Cloud 9 Little Buddy + sweets = 23 keys

http://backpack.tf/profiles/76561198225581944#!/compare/1482278400/1482364800 - sold for Circling Peace Sign A Rather Festive Tree = 24 keys

http://backpack.tf/profiles/76561198125791160#!/compare/1482019200/1482105600

http://backpack.tf/profiles/76561198225581944#!/compare/1482019200/1482105600 - sold for Nuts n' Bolts Company Man + 1 key = 16-17~ keys (outlier)

http://backpack.tf/profiles/76561198116318972#!/compare/1476576000/1476835200 - sold for Kill-a-Watt Big Country = 15 keys (outlier)

Mini's:

Cloud 9 Little Buddy:

http://backpack.tf/profiles/76561198018719204#!/compare/1478563200/1478736000 - sold for 21 keys

Circling Peace Sign A Rather Festive Tree:

http://backpack.tf/suggestion/58556587e3387720312d64d3 = 21-26 keys