If you use Instax films, its really cheap to buy in Hong Kong & Ship it over!

https://www.aliexpress.com/item/Fuji-Fujifilm-Instax-Mini-8-Film-Blanc-2-Packs-40-Sheets-Film-For-7s-8-90/32593112995.html?spm=2114.search0104.3.11.kJempS&ws_ab_test=searchweb0_0,searchweb201602_3_10152_10065_10151_10068_5400011_5430020_5410020_10307_10137_10060_10155_10134_10154_5370011_10056_10055_10054_10059_100031_10099_10103_10102_10052_10053_10142_10107_10050_10051_5380020_10326_5390020_10084_10083_10080_10082_10081_10177_10110_10111_10112_10113_10114_10312_10313_10314_10315_10078_10079_10073_5420011,searchweb201603_1,ppcSwitch_5&btsid=b6f7bdea-28d9-42a0-8440-890807e986fa&algo_expid=edacc78a-6a79-4793-b45a-0f48c4c4ffe0-1&algo_pvid=edacc78a-6a79-4793-b45a-0f48c4c4ffe0

Check this link out, it has free shipping too.