Fangamer have updated their E-Tank coffee mug product page to include a little sneak peek at the custom coaster, included wth your purchase.
The coaster's simple design harkens back to the classic Robot Master windows of the 8-bit days (and the more recent MM9 and MM10). The colors mesh quite well with that of the mug, too -- I really couldn't think up of a more appropriate design, really. The four-inch rubber coaster is set to be included alongside the mug, collectively retailing for $28.00 USD.
Additionally, there's been a slight bump in the mug's release date. Due to overwhelming popularity, Fangamer says all orders placed from here on out will not ship until mid-January, 2011. Citing a tight-production, the mugs will also be limited to two units per customer. No indication of how much longer they'll be in-stock so if you intend to order, order ASAP!