After a recent run through the NEEDSPONSOR tickets at https://bugzilla.redhat.com/showdependencytree.cgi?id=177841, here are eleven tickets which seem to be waiting on a willing sponsor instead of the submitter:
https://bugzilla.redhat.com/show_bug.cgi?id=250747
https://bugzilla.redhat.com/show_bug.cgi?id=307901
https://bugzilla.redhat.com/show_bug.cgi?id=376531
https://bugzilla.redhat.com/show_bug.cgi?id=426985
https://bugzilla.redhat.com/show_bug.cgi?id=427611
https://bugzilla.redhat.com/show_bug.cgi?id=427674
https://bugzilla.redhat.com/show_bug.cgi?id=427955
https://bugzilla.redhat.com/show_bug.cgi?id=428413
https://bugzilla.redhat.com/show_bug.cgi?id=428435
https://bugzilla.redhat.com/show_bug.cgi?id=429178
https://bugzilla.redhat.com/show_bug.cgi?id=429221
This list will almost immediately be out of date, but perhaps it will help.