Credits to polar

Sold for Something Burning This Way Comes Slick Cut (4.2) + Massed Flies Professional's Panama (1.5) + 10 keys:

http://backpack.tf/profiles/76561198021013907?time=1422950400

http://backpack.tf/profiles/76561198021013907?time=1422864000

(4.2 + 1.5) * .9 + 10 / 13 = 5.8992

Rounded to 5.9 buds

Flies Panama mini:

[Sold with Strange Australium SMG (12/13) + 6 keys (6/13)] for Nuts n' Bolts Brainiac Hairpiece (2.9):

http://backpack.tf/profiles/76561197971577045?time=1422400456

http://backpack.tf/profiles/76561197971577045?time=1422432000

2.9 - 12/13 - 6/13 = 1.5154 buds

~1.5 buds

Sold for 160 Euro SCM:

http://i.imgur.com/KM6bXuK.png

http://i.imgur.com/LUWllJm.png

~6.6 buds

A bit iffy. Gonna leave this sale out.

Sold for 5.5 buds:

http://www.tf2outpost.com/trade/24076194

5.5 buds