The Book of Pooh - Episode 49 "The Case of the Disappeared Donkey / The Littlest Dinosnore"

Tigger becomes Stripey McSnarl and investigates a mystery when Eeyore can't be found. / Roo is too little to join the gang on an expedition, so Tigger cheers him up with some tall tales about the Littlest Dinosnore and the big things he did.