There are a lot for 1.66-2.00, I believe 2.33 is not needed.

Also, the unbumped ones, I don't see them as a big problem, since there is only 3 pages of this item on outpost, it is easy to search for the cheapest one:

http://www.tf2outpost.com/search/240374117

Classifieds:

http://i.imgur.com/0ZpQS9u.png

http://i.imgur.com/KjmB3l5.png

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

Outpost: (WHY YOU DONT BUMP YOUR TRADE ???!!)

http://www.tf2outpost.com/trade/25076860 - 1.33

http://www.tf2outpost.com/trade/25088795 - 1.66

http://www.tf2outpost.com/trade/25061493 - 1.66

http://www.tf2outpost.com/trade/25029295 - 1.88

http://www.tf2outpost.com/trade/25028148 - 2.00

http://www.tf2outpost.com/trade/25078994 - 2.00

http://www.tf2outpost.com/trade/24983150 - 2.00

Unsolds: (WHY YOU DONT BUMP YOUR TRADE ???!!)

http://www.tf2outpost.com/trade/24902716 - High end bp price - (2.33) (2 weeks old)

http://www.tf2outpost.com/trade/25082043 - 14 hours (not really proof but..) - 2.33

http://www.tf2outpost.com/trade/25080041 - 20 hours (not really proof but..) - 2.33

http://www.tf2outpost.com/trade/25071154 - 2.33 1 day

http://www.tf2outpost.com/trade/24859344 - 2.33 2 weeks

http://www.tf2outpost.com/trade/25057107 - 2.33 - 2 days

http://www.tf2outpost.com/trade/24977853 - 2.33 - 1 week

http://www.tf2outpost.com/trade/25030780 - 2.33 - 4 days

Note: I know most are unbumped trades, but if you look for yourself, at the time of posting this, only 4 trades were bumped in atleast 30 minutes (and they don't have any price).

So, yes it is hard to find bumped trades for this items.

Also, additional proof, I bought 2 for 1.33 some days ago:

http://i.imgur.com/MZn6y1z.png

Not really proof but:

http://i.imgur.com/hDYAkrp.png - Scrap.tf sells them for 1.33 and has some in stock (They buy for 1.22)