Assortment of boxes (or stacked plates), around 6-12″
Barbell and plates
Landmine attachment (or place a barbell between two plates on the floor)
Incline bench
Assortment of dumbbells and kettlebells
Rings, low and high (can substitute hanging from bar for hanging from rings)
Jump stretch band, light tension
Mini band, light to medium tension
Matador/dip attachment or place to do bar dips
Pull-up bar; rig
Rope (can substitute towel hung over pull-up bar)
T-Bar attachment (can substitute towel or ring straps looped around a barbell)