Even More ideas:
Elementary Schoolbag
Uhh… Present Teacher.
Public Telephone Backpack
Ringing with enthusiasm.
Battery
The battery is included on you.
Mining Helmet
Mining bitcoins.
Anchor
Sure it’s heavy.
Radio Operator
We need Catsack reinforcements.
Bum Bag
Walking in the 80s.
Defragmenting Hat
Something is happening to the Matrix…