Chelsea got me a Mr. Men Mr. Grumpy one, says 'Grumpy by name, grumpy by nature'.Think it would suit some members on the forum better than me though.
But for the purest engine experience, displacement has no replacement. All other methods are simply attempts to artificially recreate the benefits of displacement.
Nothing says "I love you" more than a Mr Grumpy mug
I have the one on the left, oh and mine is man sized too, takes two teabags.