Reusable Cups

"I am not a paper cup..." designed by James Burgess. I am seriously thinking of buying one for studio. The lid is silicone. $25 free shipping on nestliving, a little pricy but probably the cheapest with shipping fee?

Here's another interesting mug that I have found. Saw it at Taipei's eslite book store near 101. [誠品 信義店]
Thinking of buying this for Sandra's birthday.