Introduction: Chest 2.75" (opening)
Here is a simple 2-3/4" opening chest.
This one is pictured with my 1-1/4" opening chest inside and next to my 6" opening chest.
Step 1: Chest
Cut out the two pieces.
Fold and glue the bottom (4 sides and a bottom - no top).
Fold and glue the top (4 sides and a top - no bottom).
Glue the top to the bottom using the extra tab on the top (glue it on the inside of the bottom).