[PD] polymorphic delay or pipe or something

[ClaudiusMaximus]

For a patch I'm working on the most logical way of doing things needs an
object that delays lots of things like [pipe] does, but it needs to be
able to delay all of the things that can be sent as messages (this is a
general event looping abstraction that I want to use in many places).

Is there such an external or do I have to write one?