From WorldWideFred and TheFoundary come a simple set of optical-illusion glassware designs that could add a bit of color to your next cocktail (or rather: beer and wine) party.

The wine glass illusion lets people hold an ordinary tapered cylinder but still show off the classic thin-stemmed shape one expects from the drink.

The beer bottle illusion knocks it up(side-down) a notch, appearing to fill in the form of an inverted beer bottle (conveniently brown like a typical-bottle, micro-brew glass to boot).