Sometimes, there’s just no space on the desk to hold your mug. Or there’s no desk at all, like when you’re having coffee while riding on a Martin Jetpack. These Knee and Lap Mugs should come in handy.
Instead of having a flat base, each mug comes with a unique bottom design that makes it perfect for setting on a specific surface. As their names imply, one is cut for perching just over your knee, while the other is shaped for sitting squarely in your lap.
The Knee Mug has a curved, scalloped bottom that lets it rest right over your knee, while the Lap Mug’s pointed bottom wedges between your thighs.  Both mugs stand at 4 inches tall and can hold up to 12 ounces of beverage content.
Some parts of the bottom area for both have been flattened, so that you can set it on a regular table, in case there’s actually desk space available. Be careful when doing that, though, since we doubt it’s as stable as a regular mug (in fact, the Lap Mug will be tilting to one side when placed in a flat surface).
Thinkgeek has the Knee Mug and Lap Mug available as a pair, priced at $15.99.