Event suggestion, Team 1:

Sale 1:

https://backpack.tf/profiles/76561198304138933#!/compare/1513468800/1513555200

Sold for 8.34 keys (8 keys and 12 ref)

https://backpack.tf/item/1727472520 - Was bought back the next day.

Sale 2:

https://backpack.tf/profiles/76561198202390680#!/compare/1513641600/1513728000

https://backpack.tf/profiles/76561198133991629#!/compare/1513641600/1513728000

??

Sale 3:

https://backpack.tf/profiles/76561198120218883#!/compare/1511913600/1512000000

He raffled it off on scrap.tf (I remember joining the raffle)

Sale 4:

https://backpack.tf/profiles/76561198114280345#!/compare/1512172800/1512259200

https://backpack.tf/profiles/76561198394823128#!/compare/1512086400/1512172800

Going to assume it was sold for 8.43 (8 keys and 15 ref) Due to bot selling it at that.

Sale 5:

https://backpack.tf/profiles/76561198392607701#!/compare/1509926400/1510185600

https://backpack.tf/profiles/76561198155848925#!/compare/1510012800/1510099200

Sold for a Nuts n' Bolts Honcho's Headgear (Can't find a decent mini)

Sale 6:

https://marketplace.tf/items/398;5;u32 - $17.97

Keys were $1.97

= 9.1

https://backpack.tf/item/1301949642 - This has a bunch of bot sales that are untrace. Excluding.

Sales:

8.34

8.43

9.1

Going with 8 - 9