As one of its daily deals, HoboNinja offers this "Parts of a Unicorn" T-Shirt in Black for $9.99 plus $2.99 for shipping. That's $16 under the lowest total price we could find for a similar shirt elsewhere, although we saw this one for $4 less in June. It's available in sizes S to XL. Deal ends March 6.
Note that size XXL is available for an extra 99 cents, and size 3XL for an additional $1.99.
Most taxpayers will see their tax bill go down during 2018. That could impact which type of account -- traditional or Roth -- makes sense for you.