Quoted from PinMonk:You can do that for free with a sippy cup or bottle and plain water (or juice in a pinch). Just gently pinch their nose closed as they drink. You only need about 5 seconds of uninterrupted drinking with nose plugged for it to clear hiccups. It's harder with non-babies because sometimes they object to the nose plugging, so it may take a few tries, but it works 100% of the time unless you have an underlying medical problem (the people that have non-stop hiccups).
Works for adults, too, usually on the first try, especially if you slowly drink an entire 8oz while you plug your nose.
For adults, eat a spoonful of peanut butter. Works every time and eating a spoonful of PB is just awesome anyway.
Just finished up my weekly store venture earlier. I may look into delivery going forward, but much prefer getting my own stuff.