'Toddlers and Tiaras' Kid -- My Dead Bunny Deserves the Crown

Adorable "Toddlers and Tiaras" star Paisley Dickey suffered a devastating loss when her little pet bunny died -- and now the little fur ball's getting STUFFED for posterity.

It's pretty sad ... 4-year-old Paisley -- who first made headlines for wearing the Julia Roberts​' "Pretty Woman" hooker outfit -- only had little "Bun Bun" for two weeks ... when he died of a heart attack.

Paisley's mom Wendy tells TMZ they tried to bury Bun Bun, but when Paisley refused to say goodbye ... they decided to take the taxidermy route -- and videotape the whole thing.

In the video ... Paisley and her parents hit up their local animal stuffer in Georgia, so Paisley can choose Bun Bun's eternal resting position -- inside one of her pink-jeweled tiaras.

In case you're wondering ... Wendy says Bun Bun suffered the cardiac arrest when a balloon-popped. She says they didn't realize pet bunnies commonly die that way.