Might not exactly be a hamper, but there's something I used to sell in my cake biz, and it was easy to make.
I made boxes of brownies. I'd make 4 batches of brownies, each with a different flavour. One plain, one with orange zest, one mocha with coffee, and one with Christmas cake steeped fruits added.
I would then cut them into pieces and wrap them all in foil. Then each one in coloured tissue paper according to flavour. Christmas tissue is cheap in home bargains or Poundland. Or I prefer plain coloured tissue in jewel colours. So I might wrap the orange pieces in orange paper, mocha in Green, plain in red, and Christmas in purple. The fool shines through the tissue and looks SO pretty and decadent.
Then I'd pack a selection of flavours in a nice gift box, lined with more nice tissue paper.
I also added a little note, perhaps gold pen on black card, to explain the colour-coded flavours.
They were gorgeous! And not expensive or hard to make 4 batches of brownies. The extra deco touches made up a lot of the eye-appeal.