Secret Wall Tattoos

Sneaky art, generally done in hotel rooms. I doubt it was started by, but it's certainly gaining popularity because of Josh Homme, singer for Queens of the Stone Age. I knew they were cool when Will Ferrell laid down the cowbell on their SNL performance, but this makes 'em cooler... Regardless, it's caught on, and now people are submitting their own pictures to the site.
Link: SWT
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