Non-carbonated cocktails

I recently picked up the Liquor Stick from Pins and Aces (it’s a glorified booze dispenser for your golf bag, long stainless steel tube with rechargeable pump on the top). It holds up to 25oz of your favorite spirit or cocktail but although I haven’t seen it listed, I’m assuming you can’t put a carbonated cocktail in it. I’m not opposed to filling it with an Old Fashioned or Manhattan but that seems like potential trouble on the golf course. I was thinking about something like a Transfusion or ginger beer and bourbon but leaving the bubbly stuff open for a day or two to try and remove the carbonation…? Anyone have any better ideas?