I don't know if this is a good idea or not, but would there be any benefit to playing Aether Vial in a shop list? That way you can vial out creatures that have colored mana costs and may not be artifacts but could function as lock pieces. Ethersworn Canonist seems like it could be decent and maybe Leonin Arbiter? Would this dilute the deck too much? Thoughts?
I've never really liked Aether Vial in Shops since it doesn't really affect your opponents board state at all. Plus, with Workshop being a reusable Black Lotus for Artifacts you never really need a Vial effect to put dudes onto the battlefield.
What exactly are you're trying to accomplish by including Aether Vial in a Workshop deck or better yet, what are the benefits you think Aether Vial will offer you in a workshop deck?
If I were to begin theorizing a Workshop deck with Vial in it I'd start with something like this...
25-
4x Mishra's Workshop
4x Wasteland
1x Strip Mine
4x Scrubland
1 Plains
1 Swamp
2x Marsh Flats
1x Cabal Pit
1x Urborg, Tomb of Yawgmoth
1x Mox Jet
1x Mox Ruby
1x Mox Pearl
1x Mox Sapphire
1x Mox Emerald
1x Black Lotus
21-
3x Crucible of Worlds
4x Tangle Wire
4x Thorn of Amethyst
4x Chalice of the Void
4x Aether Vial
2x Nihil Spellbomb
17-
4x Dark Confidant
4x Ethersworn Canonist
3x Thalia, Guardian of Thraben
3x Tidehollow Sculler
3x Braids, Cabal Minion
63 cards and it still looks like an Archie Bunker....