Hollowing tools and gouges can be seen on my website as well as several "how to" articles that I have written. www.johnjordanwoodturning.com
Unlike hollow turning, which uses fairly specific tools, carving and texturing is open to a myriad of methods and techniques. Some use cutting tools, others may carve primarily with various kinds of rotary tools and burrs, while other make use of burning/pyrography tools for decoration and even shaping.
These are a few sources of various kinds of tools or services that I use, there are many others. Unless otherwise noted, they can be found in the resource links below:
Graeme Priddle Woodburning Brands and “Vaporizer” - John Jordan Woodturning
1/2” x 1” or 5/8” x 1 spiral cut or non-ferrous cutting carbide burrs - Wood Carver’s Supply
1/4” collet pneumatic die grinder w/rear exhaust - auto parts store / Harbor Freight
Many options here, both sets and individual. V-cuts and different sweep gouges are what I use most. The Reciprocating set with a handle will take the place of these. Carving gouges of almost any brand can work fine.
I don’t use these a lot, but they are good for textures. Some people do a majority of their carving with them. Stump and carbide discs are what I use most. This link has some very nice and popular cutters for removing wood quickly and texturing.