Like in sports, fans wish they could have a particular person from another band come to their team/band and play along with or in place of current members. JUST FOR FUN, name your favorite band and pick and choose different musicians to come and play ala trading or aquiring an original member, and then give the new lineup.
Imagine Mercury and Hendrix, Queen fans?
i'd take led zeppelin and:
trade robert plant for freddie mercury
jimmy page for brian may
john paul jones for john deacon
john bonham for roger taylor
then i'd rename it queen and call it the best band ever.