What can I get for my mum's birthday?

She's turning 48 and I want to get her something really special. She's already said she doesnt want a cake (she doesnt like to be fussed over) but my dad is turning 50 this year and everyone is making a big deal out of his birthday and my mum's sort of been forgotten about, so I want to do something nice for her, I've already done up a card, any other idea's? I've actually come up with an idea for a treasure hunt in the backyard, we use red and pink ribbons or streamers and at the end of it are all her presents, her birthday cards, flowers, lollies perhaps seeing as she likes those, chocolates, anything else I can think of. What do you think?