Maynard, 28, celebrated with her girlfriends at the bachelorette bash Wednesday night, and posted photos on of the festivities on her Instagram.
The party included champagne in a pink Hummer limo, with Maynard and her friends donning trucker-style baseball caps, short shorts, tank tops and fanny packs.
Nashville-based Sweetface Cakes designed a confection that adhered to the bride-to-be's theme: It was topped with a ball gown-wearing blonde doll holding a rifle.
Maynard is just getting warmed up with the celebrations: she plans to wed automotive management consultant Tyler Johnson this summer.
Last week, Maynard told PEOPLE that sharing her life with Johnson "is everything I've been praying for for years."
The couple got engaged in January, one year after they began dating.