First off I have tried to make shop aggro decks before, and I will admit that I have had basically ZERO success. My main idea for the deck is Eon Hub. Now Ray has re-sparked my interest in a shop deck, and Coldsnap has offered a bit of fuel for this interest.
The Core:
4 Juggernaughts
3-4 Eon Hub
2-3 Razormane Mastacore
2-3 Phyrexian Soulgorger

for an 8/8 with:
Cumulative Upkeep: Sacrifice a creature <coldsnap>
Essentially the concept is this ... Eon hub fundimentally changes certain decks. It shuts down the win condition of Oath, and Ichorid. Severally hampers Fish (energy flux, and Bob), and Stax (Smokestacks, Tanglewire). And minorly weakens Mystical, Vamp, and Top.
Oath, Ichorid, Fish (SS), and Stax makes up what is considered the "bottom half" of the meta-game. This leaves Gifts, Tendrils, and Slaver as the "top half." wich is realatively un-touched by Eon hub. However... Fast aggro can deal a deathblow to Slaver and Gifts if built correctly. Which leaves Combo/Tendrils.
Because of this, I think the deck is worth at least considering. Maindecking Hubs and Soulgorgers could prove to be viable if contained in the right shell. The problem is finding the right shell.
Mono-Brown:
Pro--
-Gives a more focused mana base to a mana hungry deck. (tombs, traitors, metalworker)
-Lends itself more naturally to an alternate win in worker/staff
Cons--
-Loss of reliable tutoring and draw-engines
-wasteland ripe mana base
-offers little to no protection against counterspells
-with eon hub being the focus, you run into anti-synergistic disruption choices: Stacks and Tanglewire.
Mono-Red:
Possible Additions:
Wheel, Welders, Gamble, Solomn Simulacrum, Pyrostatic Pillars, Mox Monkey, Null Rod? Ghost Quarter?
Pro--
-Welder gives you a direct answer to tinker/DSC.
-Welder gives you a degree of immunity to counterspells
-Welder/Simulacrum draw/fetch engine becomes available
-Pyrostatic Pillars gives you an answer to COMBO and quickens your win against fish and other low CC decks (like Bomberman).
-the Simulacrum engin opens up the MAJOR possibility of Null Rod and/or Bloodmoons in the main deck.
-This also makes Ghost Quarter look like a possible inclusion.
-Welder/Razormane is good synergy when you don't have Hub.
-Welder/Gamble tutor power -> which enables Crucible/Bazaar/Welder
Cons--
-You are a welder deck, and everyone likes to kill welders
-It focuses the deck a bit more on "bigger" solutions under the pre-tense of "I can weld it in" such as Sundering Titan, and Platinum Angel.
Mono-Blue:
Possible Additions: Blue Draw cards (including Timetwister), Transmute Artifact, Tinker, Mystical, possibly some countermagic.
Pros--
- Opens up the possibility of Cathodin/Transmute Artifact looks like a broken focus of the deck on paper.
- Obviously you get powerhouses like Ancestral, Timewalk, Timetwister.
- You can use tolarian for more than just colorless mana
- You get a real draw engin from Thirst
- Still open to Simulacrum, but clearly is not as powerful
- Opens up the possiblity of Power Artifact/Monolith
- Possibly could make use of memnark
Cons--
- More mana requirements, Transmute artifact is one of the best cards that could potentially be gained from mono-blue. And that requires

as well as Power Artifact that requires the same.
- Solves the draw problem, but does little to dirrectly improve your matchup aginst Gifts, Slaver, or Combo.
Blue & Red:
Possible Additions: see above
Pros --
- Opens up the potential for Welders + Stable draw
Cons --
- Completely destabilizes your mana. At this point 5 color becomes a better option.
5 Color: Basically a completely different animal. If I were going to consider 5 color, I would basically go to Ray's "Stacksless Stax Deck" I think mateing the Eon Hub Agro concept into the staxless stax deck would just not make viable offspirng.
I like the mono-Red version: So here Is the initial List--
Mana-----
4 Shops
5 Mountains
5 Moxen
4 Lotus, petal, Crypt, Sol Ring
1 Guilded Lotus
1 Stripmine
3 Wasteland
2 City of Traitors
Creatures---
4 Juggernaught
3 Razormane
3 Soulgourger
3 Solomn Simulacrum
Search / Recursion--
4 Welders
3 Gamble
2 Crucible
1 Wheel
1 Bazzar
Hosers --
1 Trinisphere
4 Eon Hub
4 Pyrostatic Pillar
3 Null Rod