As for Floyd covers I always liked Ummagumma with the picture inside the picture as each band members take turns sitting in the chair by the window.
Some others
The Who On Tour Magic Bus
Uriah Heep-Demons & Wizards
Led Zeppelin III with the Spinning Wheel inside
Deep Purple-Machine Head
Kiss-Alive
The Beach Boys-Shut Down Vol. II
The Beatles- Sgt.Pepper
Tool- !0000 Years with the cool lens
The Rolling Stones-Big Hits High Tide and Green Grass
The Who sell out
I'm sure I'll add more later
Oh yeah how could I forget
ELO-Eldorado There really is no place like Home

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come on you painter,you piper,you prisoner,and shine!!!!!!!!!!!!!!!!!!