A small cube, meant for babies to play with and learn basic letters. It has 6 letters engraved on it, two of which stand out.
- Several inside a truck at Wicked Shipping Fleet Lockup.
- On the floor of the baby room in the House of Tomorrow.
- At least 12 can be found in the main entry point of Vault 75.
- Inside a fridge at the Water Street apartments.
- The other four letters on wooden block N & S are T, N, P and O
- Wooden blocks are frequently found spelling out "GARY," a reference to the Gary clones from Fallout 3.