Ohmygosh! I haven't had a chip sandwich is ages and I haven't even given my children one yet. I'd completely forgetten about it.
Chicken chips are the best for chip sandwiches. :P

I like peanut butter and honey too ( sometimes golden syrup if there is no honey. )
I got my eldest onto cheese and spanish onion with pepper sandwiches. (It'snot that weird but it's something I showed him that he loves now too)