Was the Wind in the Willows one that included "Mister Toad, if he pumps (?) up more, he's gonna expl-o-o-de"? I'm at work and can't YouTube - but I remember that one at least.
finally found this - it's the Rankin-Bass adaptation from 1987, featuring the very Gollum-esque Toad. Song begins around 3:10 in this video:
― Doctor Casino, Tuesday, 13 November 2012 00:07 (eleven years ago) link