I am unsure do they accept cash? Gift card should be good. You going to give $40 for all other 4 teachers? Cookie or chocolate boxes are more cheaper compared to money you spending. 99c shop or Walmart shop has small gift bags in the birthday section you can use those bags and cover with thin color sheet we use for birthday parties. Costco or Sam's club has bulk Christmas gift chocolate and cookie boxes .I usually buy 3 or 4(each comes with 2 or 3 boxes) Christmas boxes, if I buy 3 big boxes(each has 2 or 3 smallsmall ) so totally I get around 9 and distribute among teachers and aides in gift bags. My personal opinion but if you prefer to give away more cash it's up to you.