Modules & VBA :: Getting A String With Month / Year From A Date

I need to use VBA to get a string which is essentially just a month and year (so date, not including day)

Would Prefer it to be 04/15 as opposed to April-15, as the number is easier to sort than the word (how to sort month names in numerical order as opposed to alphabetical id).

So that I assume i could do by =format(now(), mm/yy) (though havent actually tested it)

However to add to the complexity id also need to add a month to it, so for instance todays date is 08/04/15, id need the string to read "05/15"

or if the date was 10/12/15 id need the string to read "01/16"