your older ones might like the paint/gel stuff you get that you can make peelable picture things to go on glass...they could do holly leaves etc on the window...you can then peel it off and store them for next year.....all your crafty stuff you can get at spot light...I love the sequin tree deco idea...i have some a friend made me 10 yrs ago that take pride of place on my tree every year...they are still going strong despite losing a few sequins over the years.