My nearly three year old is totally besotted with trucks. He recently watched the offloading of the trucks off the ferry and at the same time learnt what a truck was called (ie: not a 'big car')
However, he can't pronounce 'tr' - it comes our 'fr'. Now he is constantly pointing out the window of the car, buses, whatever, yelling, "Look Mummy, Fruck!". Occasionally, he drops the 'r'!
I do hope everyone around us doesn't think we've taught him THAT word and realises what he's trying to say!
Has anyone else found their little ones mispronouncing words and creating quite naughty words in return?