This is awesome. The folks over at Switch, an ad agency here in St. Louis, created an incredible "ugly holiday sweater" t-shirt with a St. Louis Blues theme. As if the shirt wasn't cool enough as is, the proceeds are going to charity. When you buy a shirt you're also helping out the Animal Protection Agency.
More info on the product here.
The shirt will set you back $21.99, but when you factor in how cool this shirt is and the fact you're helping out a worthy cause, it's an easy price to stomach.