Classifieds: http://backpack.tf/classifieds?item=Voodoo%20JuJu%20(Slight%20Return)&quality=5&tradable=1&craftable=1&australium=-1&particle=30

Screenshot(s) of Classifieds:

http://imgur.com/VBRRWYe

<Sellers>

21 keys | http://backpack.tf/item/1432372238 | http://backpack.tf/u/76561198011321852 | Listed 14 days ago [Bumped]

21 keys | http://backpack.tf/item/1262054145 | http://backpack.tf/u/76561198032176942 | http://www.tf2outpost.com/trade/28796460 | Listed about a month ago [Bumped]

21 keys | http://backpack.tf/item/1722458515 | http://backpack.tf/u/76561198061376237 | http://www.tf2outpost.com/trade/28793389 | Listed about a month ago [Bumped]

22 keys | http://backpack.tf/item/1334942280 | http://backpack.tf/u/76561198086948995 | Listed 3 months ago [Bumped]

http://www.tf2outpost.com/trade/28805828 - b/o: 17 keys (4 weeks)

Sold:

http://backpack.tf/profiles/76561198312539606#!/compare/1485907200/1485993600 - sold for Strange Bacon Grease = 18 keys (at the time)

Credits to Mindacos

http://backpack.tf/profiles/76561197964171516#!/compare/1484352000/1484438400 - sold for 16 keys

Credits to Mindacos