Hi jocelynk Yes make great gifts too. I typed up an instruction page with each one as heard of someone who burned their's... just like we can burn food in microwave. One daughter heated hers too much too and got a slight burn.... I put in for 1 1/2 minutes. But should have microwave in my bedroom to re-heat, lol Thinking about it, adding up the years, its about 20 yrs for me too, I think thats when they first were in stores? Andyes, used to use cleaned oats from garden store... my daughter liked that as she said smelled like porridge when heated! I mailed one to my cousin in UK and it was over $40.00 air parcel post as so heavy but otherwise takes up to 3 months surface/boat. She's worth it tho! J.