Target is selling this incredibly cool cake pan as part of their "Red Hot Shop" collection of design-geek holiday gifts.
The "S-XL Cake Mold" pre-forms your cake into fifteen slices in a range of sizes, from itsy-bitsy (for your perma-dieting mom) to aggressively large (for your perma-dieting mom, after everyone else has left the room).
This is the most wonderful kitchen tool ever. It measures liquids or solids in terms of grams and ounces, sure, but also in terms of the volume of a T-Rex's brain, or the number of grains of flour that there are people on the planet.
Bonus: It is actually purchaseable.