Paging mixed result sets

We have an app that displays a merged mixed list of multiple models
(“albums”,“books”,“movies”) which are sorted on field called
“rejuvinated_at”. This field gets updated when x number of actions
occur
on each model. So we have a list of all three content types merged
together
and sorted. The problem is we now have enough content that we need to
page
these. I can’t think of a way to do paging with multiple models using
the
built in paging controls. Any ideas on how to attack this?

thanks,
Jake