As one of its daily deals, Hobo Ninja offers this Parks and Recreation-Inspired "Burt Macklin FBI Retired" T-Shirt for $9.99 with free shipping. That's $15 under the lowest total price we could find for a similar Burt Macklin-themed T-shirt elsewhere. It's available in sizes S to XL. Deal ends March 3.
Note: It's also available in size XXL for an extra $1.89 or size 3XL for an additional $2.49.