Refillable mugs at the Water Parks

[flyfan]

Is it true that the refillable mugs at BB and TL are only good for day of purchase? My teens aren't doing the theme parks, just buying them annual passes to the waterparks and going from there (their decision, don't think I'm a mean mommy or anything). I knew I would have to buy them refillables for both the resort and waterparks, but the idea of needing a new one each day at the waterparks is kind of a bummer. Can anyone confirm?

Thanks!

 

[safetymom]

You can buy a sticker to put on the mug every time you go. Cost is $5.00