You don’t need to be too smart to get this, just to remember a bit from your Chemistry classes. The Solution Babydoll t-shirt has some drawings of lab equipment and the text “If you’re not part of the solution, you’re part of the precipitate”.
Despite my above comment, I admit I’d get this just to look smarter than most. Unfortunately, I am sure that just a fraction of the people who did Chemistry in school remember what a precipitate is, so the t-shirt will at least filter out those guys who thought high-school was that thing in between the rounds of beer.
How much under $29.99?
Some: $17.99 on ThinkGeek.com.