Hi Katchin,
Iuse a Sorby texturing tool, The bigger one.
dr4g0nfly, I use Horse Chestnut a lot, I like the wood it is quite soft and if left in store for a while it spalts nicely. As the wood has no commercial use it is readily available. Several of my colleagues use and like it, You need sharp tools as the grain plucks very readily. Its takes all finishes very well.
John