Hey there Deb!
If you want to bring a gift, that "hotplate thingy" you got, might be alright. Although, as I have posted before, I see things actually like Eddie does: I wouldnīt bring anything, UNLESS itīs the 3rd or 4th time I go to the same hostal and everybody was really nice and everybody got along really well... - get what I mean? Spaniards are different in that matter (I remember there was this TV spot some time ago where Severiano Ballesteros - whoīs a great golfer - sort of invited the world to come visit Spain. The spot ended with Severianos words: Spain is different. It sure is ) (Thank god!!)
Saludos