[Isabelle]

I've never been a collector of anything, but browsing through pages full of images of porcelain infuser mugs: ooh

This one is übercute:
http://www.primatea.com/japanese-babies-porcelain-mug-with-strainer-369

This is dishwasher proof and everything:
http://www.teavana.com/tea-products/tea-cups-mugs/infuser-mugs/p/flight-of-the-butterfly-porcelain-infuser-mug

and this looks very British:
http://www.barnesandnoble.com/p/home-gift-lidded-tea-mug-with-strainer-joy/23020962
even if B&N ship it from Manhattan :S

The second one on this page probably is British:
http://soeclectic.com/2011/07/14/loose-leaf-tea-infuser-mugs/

Mine is like the one pictured in this blog post:
http://muffintopped.wordpress.com/tag/chinese-infuser-mug/