Quite a few unsold below 2 keys:

http://www.tf2outpost.com/trade/10612407 unsold at 1.8 keys for 1 week

http://www.tf2outpost.com/trade/10715417 unsold at 1.75 keys for 3 days

http://www.tf2outpost.com/trade/10790799 unsold at 1.7 keys

http://www.tf2outpost.com/trade/10607218 unsold at 1.6 keys for 1 week

http://www.tf2outpost.com/trade/10665495 unsold at 1.5 keys for 5 days

http://www.tf2outpost.com/trade/10767973 unsold at 1.5 keys

A couple that sold today:

http://www.tf2outpost.com/trade/10775883 sold at 1.6 keys today

http://www.tf2outpost.com/trade/10751360 sold at 1.6 keys today

Doesn't sell at 2 in a reasonable amount of time:

http://www.tf2outpost.com/trade/10063331 unsold at 2 keys for 1 month

http://www.tf2outpost.com/trade/10170533 unsold at 2 keys for 3 weeks

http://www.tf2outpost.com/trade/10302447 unsold at 2 keys for 2 weeks

http://www.tf2outpost.com/trade/10413375 unsold at 2 keys for 2 weeks

http://www.tf2outpost.com/trade/10476217 unsold at 2 keys for 1 week

http://www.tf2outpost.com/trade/10478417 unsold at 2 keys for 1 week

http://www.tf2outpost.com/trade/10601607 unsold at 2 keys for 1 week

http://www.tf2outpost.com/trade/10612919 unsold at 2 keys for 1 week

http://www.tf2outpost.com/trade/10630996 unsold at 2 keys for 1 week

http://www.tf2outpost.com/trade/10634755 unsold at 2 keys for 6 days

http://www.tf2outpost.com/trade/10670833 unsold at 2 keys for 5 days

http://www.tf2outpost.com/trade/10674034 unsold at 2 keys for 5 days

More unsold at 2:

http://www.tf2outpost.com/trade/10744539 unsold at 2 keys for 2 days

http://www.tf2outpost.com/trade/10758258 unsold at 2 keys for 2 days

http://www.tf2outpost.com/trade/10763610 unsold at 2 keys

http://www.tf2outpost.com/trade/10775981 unsold at 2 keys

http://www.tf2outpost.com/trade/10780967 unsold at 2 keys

http://www.tf2outpost.com/trade/10791175 unsold at 2 keys

http://www.tf2outpost.com/trade/10794439 unsold at 2 keys

http://www.tf2outpost.com/trade/10800347 unsold at 2 keys