You could create a list named myItems with a column named myId.

Then add an item to that list, and set a workflow to that list to start the workflow on item creation.

Inside the workflow you can get the myID column

I would use a List Based workflow for this requirement.  This way you will have all of the related list item's context available to you from within the workflow.

Thanks,

Mike

Thanks Mike.  I realized this about the time FH sent his reply.  I had incorrectly locked in on parameters as necessary solution.  I have only a little experience with Nintext Workflow and haven't used it in a while.  But should have spent more time thinking it through.

FYI, FH's reply would have been marked as correct except that it suggested a new custom list that wasn't necessary.