Place this clip right after the bag is unzipped and before the item list starts, then follow it with a boing boing sound when each school supply pops onto the table for the count-along.
About this sound
This is a 4.4-second clip of Backpack singing 'Mochila, Mochila' over and over in Spanish, with a bright, bouncy children's TV voice. It feels playful and nostalgic, like a happy reward moment after finding something useful. The clip comes from Dora La Exploradora, the Spanish version of the Dora the Explorer series.