Im not sure how feasable this would be but, please as a way to obtain these two blocks in survival:

• These blocks are: minecraft:log 12 and minecraft:double_stone_slab 8.
• The wood block on the left is the variant where is has the bark all the way round it.
• I know factorization has a way to get the stone slab block but it would be nice if chisel added a way too.

Thanks for reading
-LuigiHutch

I've made Chisel groups for all logs in my personal pack with Minetweaker, with all their rotations in including this one, basically turning the chisel into a log rotating tool on top of a way to get this log form. Functionality like that could be neat.

I added chiselablility for the double_stone_slab:0 as well as double_stone_slab:8 in commit 8d35125.

Unable to do in 1.9 due to how blocks-items are handled.