non-determinant object lifetime and memory management

[Frustrated]

I need to pass around some objects(specifically int[]) that may 
be used by several other objects at the same time. While I could 
clone these and free them when the parent object is done this 
wastes memory for no real reason except ease of use.

Since many objects may contain a ptr to the array, what would be 
the best way to deal with deallocating them? I could wrap the 
array in a collection an use ARC but is there a better way?

Is there something in std.allocators that can help?

(Should be obvious that I'm trying to avoid the GC)