DIY drawer organizer project ~ 48 wood laths super-cheap at Home Depot, & the store will cut them for you. So simple it's not even really a tutorial :-) Would also work to make a shadowbox to display small items.
Pamper Your Tools - "Foam Fill" is the same as “Great Stuff” filler. It’s an expanding foam. Great stuff comes in a variety of strengths, so I think I would use the lighter to medium strength for a project like the pliers.