I got this idea from my girlfriend D and I added a few lil twists!! To make a pineapple infused vodka you need a bottle of good vodka and a pineapple (of course my grocery store was outta fresh piña's SO I had to pay more AND buy the pre-cut - which was ok - it saved me the hassle of cutting)
I used "Pearl" Wedding Cake flavored Vodka (isn't the bottle GORGEOUS)
Combine pineapple and vodka and let sit for a week (I did refridgerate mine)
I didn't have any club soda on hand SO I used Simply Lemonade with Mango and made a pineapple cocktail....
SO delish and refreshing!! and um you can totally eat the liquor soaked pineapple....mine was sweet - STRONG but sweet (I think because I used the wedding cake vodka)
The possibilities are endless I would think...different flavored vodkas with different fruits....or strawberries with straight vodka, watermelon (although may be a lil sweet and probably less infusion time)