Threadless is an online community of artists that produces art and apparel sold worldwide. In 2011, they sponsored a competition to design Muppet T-shirts as a cross-promotion for the film, The Muppets. The theme of the competition was "friendship". Over a thousand entries were received, and a total of 23 designs were produced, available in male, female and kids sizes.
Threadless also offered a promotion package that included the winning design, a copy of The Green Album and a Muppet poster.
3 x 3 = Friendship by Fernando Velazquez
Animal Inside by Stelios Spanoudakis
Being Green by Vaughn Pinpin
Epic Adventure by Chris Phillips
Friendship Totem Pole by Crystal Fontan
Friendship = Trust by Brian Kesinger
Gonzo with the Wind by Ivan Guerrero
Healing and Smiling by Alvaro Arteaga
It's Time to Raise the Curtain by Darren Cotzabuyucas
Muppet Alphabet by Mike Boon
Muppet Letter Party by Dale Dreiling
Muppetational Mosaic by James Carroll
Muppetbook by David Andora
Muppets Cry Out by Lee Norris
Muppets Take Chicago by Erika Deoudes
Reunion Tour by Justin White
The Circle of Laffs by Chad Lockwood
The Lovers, The Dreamers and Me by Alicia Braumberger
The Paintbow Connection by Sarah Taylor
Together Again by Alfonso Diaz
Together Reaching For The Star by Carlos Rocafort IV and Jessica Rocafort