I cannot express how much I actually enjoy prettifying little gifts. You don't really need much either, maybe just a sheet of patterned paper, trim and some chipboard will be just about enough to make a purchased gift seem even more thoughtful (oh, how cunning! ;) ).
Here's a papercone I wrapped around a bag of exclusive handmade chocolate. See how far you get with so few "extras"? For the cone I used two sheets of patterned paper (one for the cone itself, another for the paperedge underneath the satin pleated trim). Paint some chipboard (here: Mixed Shaped Mini chipboard set as base, with a heart from the Love Mini chipboard set and letters from the Caroline Mini Alphabet chipboard set), and decorate with tulle and some leaf-pins.
The trim is decorated with a Velvet Resin Blossom.
I originally started out with researching templates for this cone, but gave up and just wrapped a sheet of regular printer paper around the bag. Made some creases and edges and cut out my own template, winging it. Then I placed my selfmade template upon a sheet of patterned paper and cut it out, adhered stuff together and started decorating it. Maybe if I purchase another of these chocolate bags, I'll remember to do a photo-step-by-step, hm!
1. Purchased gifts looks way cuter when you dress'em up.
2. Just because you can't find a template or idea that'll fit your gift, don't give up. Just wing it!