If your stuck for something special for someone with a sweet tooth then you cannot go wrong with ‘jtsweet things’ who have a shop on etsy, http://www.etsy.com/shop/jtsweethings
You can choose from ‘Ferrero Rocha Towers’ to a ‘Candelabra foil wrapped chocolate sweet tree’.
Another shop on etsy who does similar things is ‘special moments gifts’, http://www.etsy.com/shop/specialmomentsgifts
They make ‘Chupa chup lollipop trees’, ‘Lindt truffle chocolate trees’, and ‘Ferrero Rocha Chocolate Trees’, as well as other unusual gifts.
And finally another special site that has ‘Sweet Trees’ but also many other beautiful vintage, retro and French-style country gifts and home accessories, so if you can’t find a chocolate tree you like, I’m sure you will find something just as nice, http://www.rusticangels.co.uk/acatalog/sweet-trees.html