Yup, Bamboo Trapdoors and Doors would give a very unique look to a Jungle house. Maybe even solid Bamboo Blocks, Slabs and Stairs.
Also maybe you should be able to make Punji Sticks? In case you don't know what it is, it is a sharpened and heated Wooden or Bamboo stick which you put sticking out of the ground. It's basically a spike. Maybe even pitfall traps with those at the bottom, and a camo tarp covering it (another idea).
Maybe a Boat reskin that looks like it's made of Bamboo, just like there's Boats of every wood varient now. AND the Raft on top, and maybe you could put a sail (with a jungle wood pole to fit the jungle theme) or even a chest on it.
Imagine having a bamboo boat/raft making survival feel more like what it's supposed to be like. Especially survival island. In most survival shows they make houses out of stuff like bamboo and thatch for roofing.
I think the variant blocks for bamboo truly would be pleasant.
Yes, I would love if this was added. It would add more options for color pallets, and just be a cool addition to have around. I also thought it would be cool to have a bamboo rod, that would have a longer reach to hit entities, and maybe even be able to push buttons, pressure plates, levers, ect. anyway
This is actually a good idea even though not a lot of 'details' about new block
Not sure on other suggestion for Punji sticks, but maybe the bamboo trapdoor with a sand/gravel block above could 'collapse' when walked over ?? (like scaffolding but without the need of support from ground up) - with the 'wither roses' at the bottom you have a nice drop trap
Maybe we could have Bamboo 'spears' - a bit like the trident but non-enchantable/non-returnable (you have to go & pick them up).. to craft use flint on bamboo (this would give flint another use )
And perhaps use as an additional material to crafting bows (maybe a 'long bow' - greater hitting force/longer range) & arrows (use instead of sticks)
Talking of Sticks - do Bamboo burn in furnaces atm ??.. maybe an alternative use for fuel maybe with a slightly longer burn rate than sticks but not as much as coal ??
Like the idea of bamboo variants, especially bamboo rafts. Maybe the rafts could hold 3 people instead of 2, due to the length of bamboo rafts in real life? Would be very minor, but would make it distinguishable from the boat.