There is a few ways to get sand dollars(SD) without spending real money, here’s a few ways:

* MYSTERY BOX- Ask your neighbours to send mystery box, there is 11% chance to get SD
* TREASURE CHESTS- spin them each day there is 4% chance to get SD
* LEVEL UP- with each level you’ll reach, you’ll get SD
* DIAMOND AWARDS- if you’ll reach last award (we have bronze, silver, gold, platinum and last one is diamond), you’ll get SD
* ANTIQUE VASE- Ask your neighbors to send antique vase, keep it till it’ll get antique (aging/antique/decay) and sell it. you’ll get 51xp, 1300coins and bonus from dealer. sometimes bonus is coins, sometimes – xp, but there is a chance to get also SD.