Hello,have you ever tried showing them a box that i would call a sensation box?for example in a box could be textured objects such as cotton,treebark,silk,satin.or a variety of smells i use candles ,one of my favorite is my fruit basket an apple,banana,grapes,a candle that smells fruit and a cherry dum dum for taste(the fruit is plastic)..another fun thing that i present my residents with is a box filled with rice and sand they dig in the box and find things that i have hidden in it(this could be anything )when they pull out the object have them identify it...an example key chain, a bingo chip, a door hook, a super ball,and such..have fun.