These are sites sell shirts for a limited time, allowing the artist to keep the rights to their artwork.
Aplentee
$1 per shirt sold
Arteesel
$1 per shirt sold
blipshift
$1 per shirt sold (with a guaranteed minimum)
BlueBoxTees
$1.50 per shirt sold
Captain KYSO
$1 per shirt sold on day one, $2 per shirt sold after that
Global Thread Collective
$1 per shirt sold
GraphicLab Tees
$1 per shirt sold
Fresh Brewed Tee
$2 per shirt sold
Limiteed
£1 per shirt sold
MuzikShirt
$1 per shirt sold
NowhereBad
$1.50 per item sold
Once Upon a Tee
$1 per shirt sold
OtherTees
$1 per shirt sold
Qwertee
1 Euro per shirt sold
RIPT Apparel
$1 per shirt sold
ShirtBattle
$1 per shirt sold
ShirtPunch
10% royalty per item sold
Snappy Kid
15% royalty per shirt sold
TeeBusters
1.25 Euros per item sold
TeeFury
$1 per shirt sold
TeeNOW
9.04% of gross revenue
TeeTee.eu
1 Euro per shirt sold
teeVillain
$1 per shirt sold
TeeVolt
$1 per shirt sold
Tshirt Fight
$1 per shirt sold
Unamee
$1 per shirt sold
Weekly Shirts
$1.50 per shirt sold
The Yetee
$1.50 per shirt sold
Zebra Tees
$1 per shirt sold
Ze Tee
1 Euro per shirt sold