http://www.tf2outpost.com/trade/23894093 - Wants 2 keys + 4 ref (unsold 3 days)

http://www.tf2outpost.com/trade/23258528 - Wants 2.4 keys (over 1 month old (had on offer of 3 keys wtf??))

http://www.tf2outpost.com/trade/23920579 - Wants 2 keys + 4 ref (young)

http://www.tf2outpost.com/trade/23743903 - Wants 2 keys (2 weeks old)

http://www.tf2outpost.com/trade/22978920 - Wants 1 key + 10 ref (under 2 months old)

http://www.tf2outpost.com/trade/23924459 - Wants 2 keys + 4.33 ref (young)

http://www.tf2outpost.com/trade/23894290 - Wants 2.5 keys with parts (3 days old)

http://www.tf2outpost.com/trade/23821782 - Wants 2 keys + 4 ref (1 week old)

http://www.tf2outpost.com/trade/23838134 - Wants 2 keys + 4.33 ref (1 week old)

http://www.tf2outpost.com/trade/23362499 - Wants 3.2 keys (1 month)

http://www.tf2outpost.com/trade/23837104 - Wants bptf price, taking offers (1 week old)

http://www.tf2outpost.com/trade/23729995 - Wants 2 keys + 1 ref (3 weeks old)

http://www.tf2outpost.com/trade/23086597 - Wants 2.5 keys (under 2 months old)

http://backpack.tf/classifieds/?item=Blood%20Botkiller%20Stickybomb%20Launcher%20Mk.I&quality=11&tradable=1&craftable=1 - 3 for 2 keys, many for under 2.4 keys.

I got suggestion fever... Or I'm just a rephore. Meh, felt like a change from voting, I'll get back to it and come back to a couple of suggestions in about half a year ;)