The usual high quality responses GD is renowned for, thanks guys
Amidst the guff there were, however, a few constructive suggestions. Shortbread is a good shout, and I'll definitely take them out for a meal and pay. Good advice about maybe incorporating the numbers 8 or 6, and avoiding 4 at all costs (the sound for 4 in chinese is similar to the sound of the word for death, hence it's considered unlucky).
So:
- Dinner for them all
- Whisky for dad
- Shortbread for mum
- Something else for mum? Shortbread is like a few quid whereas the whisky will be a lot more... should I try to spend an equal amount? Maybe a bottle of wine
- Still no idea what to give the grandma
Think I'll need to borrow some money from my parents too, and pay them back when I get my student loan. Ffs...
EDIT: I just remembered I have a set of playing cards I got from the Royal Yacht Britannia, they're unopened and have the royal seal etc printed on them. Seems a good fit for the dad cos I know he likes card games (gf told me so anyway)