Cake, like snow, sports balls, and planets, functions best when it's spherical and handheld. Relish transmuted pastry with today's Groupon: for $20, you get $40 worth of delivered cake truffles from NibNobs Sweet Company. Though this Groupon is valid for delivery orders, tax and shipping costs are not included.

NibNobs Sweet Company employs pastry alchemy to transform unwieldy slices of cake into handheld spherical treats in a variety of shades and flavors. Each succulent cake morsel is swathed in a frosting fit for complementing its core, with additional sugar sprinkles and garnish twirls available to dial up its delicious shell. Gourmet flavors, such as the refreshing key-lime pie ($24.95 per dozen) and complex dark chocolate, orange, and sea salt ($24.95 per dozen), please the palate, and classics, such the rainbow-spotted birthday cake ($19.95 per dozen) and triple chocolate chip ($19.95 per dozen), deliver comfort and flashbacks to childhood cake hunts. Thwart indecision with a variety pack (starting at $19.95 per dozen) proffering prearranged truffle harmonies, and then enjoy the treats one by one, each evoking a new emotion and an all-too-familiar urge to rub the belly cyclically.