Plastic spudger, like the one in your iFixit-kit, but fits in an LTT screwdriver bit-compartment!
This is not made to be used as a bit in the screwdriver, but merely as a way to bring a spudger everywhere.
Two variants of each: 20mm and 25mm versions.
20mm versions should fit in place of a single original LTT bit, and the 25mm will take up two slots, but gives you a bit more purchase.
I suggest printing in a semi-flexible material, and not PLA like it did, as it is too brittle.
The author remixed this model.