1 key = 7.33 - 7.44 ref

0.5 keys ~ 3.66 ref

1.5 keys ~ 11- 11.11 ref

0.4 keys ~ 3 ref

1.4 keys ~ 10.66 ref

10 ref ~ 1.3 keys

Classifieds (at time of suggestion)

http://imgur.com/C9jByuC

http://imgur.com/qWjwvaN

1x: 1.22 keys

2x: 1.27 keys

1x: 1.31 keys

- 2x: 10 ref

2x: 10.33 ref

3x: 1.4 keys

1x: 1.45 keys

1x: 10.88 ref

There are 13 ads before you see at least one for 11 ref.

14 pages of square dance taunts on Outpost

Unsolds at / above 11 ref / 1.5 keys

http://www.tf2outpost.com/trade/22120043 - 3 days

http://www.tf2outpost.com/trade/22137725 - 2 days

http://www.tf2outpost.com/trade/22095869 - 4 days (Despite the guy in the comments, still in his bp)

http://www.tf2outpost.com/trade/22073491 - 5 days

http://www.tf2outpost.com/trade/22130846 - 2 days

http://www.tf2outpost.com/trade/22175937 - 1 day

http://www.tf2outpost.com/trade/22143719 - 2 days

http://www.tf2outpost.com/trade/22069396 - 5 days

http://www.tf2outpost.com/trade/21980879 - 1 week

http://www.tf2outpost.com/trade/21980879 - 2 weeks

http://www.tf2outpost.com/trade/22142921 - 2 days

http://www.tf2outpost.com/trade/22124603 -3 days

http://www.tf2outpost.com/trade/22170866 - 1 day

http://www.tf2outpost.com/trade/22137440 - 2 days

http://www.tf2outpost.com/trade/21899940 - 1 week

http://www.tf2outpost.com/trade/21926504 - 1 week

http://www.tf2outpost.com/trade/21846728 - 2 weeks

http://www.tf2outpost.com/trade/22169584 - 1 day

http://www.tf2outpost.com/trade/22156444 - 1 day

http://www.tf2outpost.com/trade/21814803 - 2 weeks

http://www.tf2outpost.com/trade/22120226 - 3 days

http://www.tf2outpost.com/trade/22136251 - 2 days

http://www.tf2outpost.com/trade/22093602 - 4 days

http://www.tf2outpost.com/trade/21854411 - 2 weeks

http://www.tf2outpost.com/trade/22098445 - 4 days

http://www.tf2outpost.com/trade/22089014 - 4 days

http://www.tf2outpost.com/trade/22171651 - 1 day

http://www.tf2outpost.com/trade/22164176 - 1 day

http://www.tf2outpost.com/trade/22161762 - 1 day

http://www.tf2outpost.com/trade/21647018 - 3 weeks (still in bp despite add)

http://www.tf2outpost.com/trade/22121007 - 3 days

http://www.tf2outpost.com/trade/22126479 - 3 days

http://www.tf2outpost.com/trade/22156891 - 1 day

http://www.tf2outpost.com/trade/21902151 - 1 week

http://www.tf2outpost.com/trade/22153036 - 1 day

http://www.tf2outpost.com/trade/22105797 - 4 days

http://www.tf2outpost.com/trade/21988015 - 1 week

Everything past this final trade had remained unbumped for at least 2 days (at time of making this).

Sellers at 1.4 keys / 10.33 ref / 1 key + 3 ref

http://www.tf2outpost.com/trade/22181530

http://www.tf2outpost.com/trade/22191392

http://www.tf2outpost.com/trade/22195407

http://www.tf2outpost.com/trade/22153462

http://www.tf2outpost.com/trade/21873675

http://www.tf2outpost.com/trade/22183207

http://www.tf2outpost.com/trade/22132347

http://www.tf2outpost.com/trade/22194637

http://www.tf2outpost.com/trade/22192447

http://www.tf2outpost.com/trade/22193587

http://www.tf2outpost.com/trade/22165729

http://www.tf2outpost.com/trade/22196309

http://www.tf2outpost.com/trade/22163889

http://www.tf2outpost.com/trade/22177661 (Sold)

http://www.tf2outpost.com/trade/21579184

http://www.tf2outpost.com/trade/22121891

http://www.tf2outpost.com/trade/22153672

http://www.tf2outpost.com/trade/22187869

http://www.tf2outpost.com/trade/22153484

http://www.tf2outpost.com/trade/22123623

http://www.tf2outpost.com/trade/22159856

Sellers at 1.3 keys / 10 ref / 1 key + 2.66 ref

http://www.tf2outpost.com/trade/22192883 - 10 ref

http://www.tf2outpost.com/trade/22156535 - 10 ref

http://www.tf2outpost.com/trade/22187681 - 10 ref

http://www.tf2outpost.com/trade/22194549 - 1 key + 2.66 ref

http://www.tf2outpost.com/trade/22169543 - 1.3 keys (sold out)

http://www.tf2outpost.com/trade/22168404 - 10 ref

Sellers for less / in between

http://www.tf2outpost.com/trade/22177857 - 1 key + 1.66 ref

http://www.tf2outpost.com/trade/22197055 - 1 key + 2.33 ref

http://www.tf2outpost.com/trade/22198384 - 1 key + 2 ref

http://www.tf2outpost.com/trade/22197768 - 10.66 ref

http://www.tf2outpost.com/trade/22193555 - 9 ref

http://www.tf2outpost.com/trade/22162907 - 1.25 keys

http://www.tf2outpost.com/trade/22176339 - 9 ref

http://www.tf2outpost.com/trade/22183479 - 1 key + 2 ref

http://www.tf2outpost.com/trade/22151074 - 1 key + 3.33 ref

http://www.tf2outpost.com/trade/22169584 - 1 key + 3.77 ref

http://www.tf2outpost.com/trade/22188618 - 1.33 keys ~ 9.88 - 10 ref

http://www.tf2outpost.com/trade/21911515 - 1 key + 2 ref

http://www.tf2outpost.com/trade/22137797 - 1 key (sold out)

http://www.tf2outpost.com/trade/22154261 - 1 key+ 2 ref

I tried not to include any duplicates, but please point it out if I did. Thanks!