Anyone have any tips on how to get the Happiest Day ending in DSaF 1? I’m finding it to be pretty hard.

I’m playing this game for the first time and I’m struggling to get enough tokens in order to purchase the Wrench, Crowbar, and Firecracker so I can satisfy the passions of the dead children. Thursday just simply comes too early. I don’t see how this is possible to do in only 3 days.