Ties and steaks are fine for Father's Day, but wouldn't you rather give him his own portable taproom?
The GrowlerWerks uKeg, a double-walled insulated growler, keeps Dad's beer — or Champagne, fizzy cocktails, or soda — carbonated for up to two weeks. The uKeg fits in the fridge and keeps drinks cold for eight hours on the counter.
It includes a sight glass (so he can check how much beer he has left), a CO2 cap (to keep his drink carbonated and pressurized), and a tap handle (really want to impress him? You can exchange it for a monogrammed version).
Does Dad fancy himself a brewmaster? The uKeg can also be used to force-carbonate homebrew after fermentation.