T-shirts with optical illusions? (or other cog-sci apparel?)

[fleaplus]

I've been trying to find some good t-shirts (or other apparel?) with optical illusions. Have you seen any good ones lately? I've listed some of what I've found so far down below:

* Here's a scintillating grid shirt: http://www.cafepress.com/losethegameshop.56969429

* Here's some more on zazzle: http://www.zazzle.com/pd/find/qs-illusion/ps-40/pt-235/st-POPULARITY?sz=1

I particularly like the rotating snake illusion shirt.

* Another snake shirt: http://mistupid.com/shop.php?i=mistupid/mistupid5.8211841

* Here's another shirt which makes clever use of the fork prong illusion.



* Rabbit in Escher scupture: http://www.threadless.com/product/503/Illusion_of_Rabbit_Optical

* Several from the Archimedes' Laboratory store on CafePress: http://www.cafepress.com/mariejo2/221803

* http://www.cafepress.com/eluzions

* Also, a Stroop Effect shirt: http://www.cafepress.com/buy/grey/-/pv_design_prod/p_709997.9300625/pNo_9300625/id_3697534/?click=true&CMP=KNC-F-ALL