There is a decklist on the modified decklist forum of a hammer time (competitive) with an umbreon DE/fliptini spin on it that would be pretty cheap and fun to play. It isn't competitive, but it's basically a league hammertime deck. Just to give you an idea, I'll post my hammertime deck list (I recommend working on it, it isn't finished):
Hammers
Pokemon:8
3 Sableye DEX (about 1 each, ebay)
3 darkrai ex (15 each by the tins, I value around 7 dollars for the promo alone each)
1 shaymin ex (around 11)
1 mewtwo ex (about 15 each if you buy the tins, I value around 7 dollars)
Trainers: 25
3 N (4.55 shipped, buy it now ebay)
3 cheren (2.99 shipped buy it now)
4 Juniper (2.95 shipped buy it now)
3 Skyla (5.85 shipped for 4 skylas)
2 Enhanced Hammer (1.00 for 2)
4 Crushing hammer (4.49 shipped)
3 Random receiver (2.79 shipped for 4)
2 Ultra ball (8.95 shipped for 4)
3 Dark patch (2.79 shipped for 4)
1 tool scrapper (1.24 shipped for 4)
2 eviolite (11.95 for 4)
3 max potion (18.95 for 4)
1 switch (0.99 for 4)
3 Pokemon catcher (54.94 for 4)
Energies:13
9 Dark (14.88 for 20)
4 Blend FGDP (2.95 for 4)
I recommend the Dark explorers theme deck.
http://www.ebay.com/itm/Pokemon-Dark-Explorers-Cofagrigus-RAIDERS-Theme-Deck-NEW-SEALED-IN-HAND-/350674951075?pt=Trading_Card_Games_US&hash=item51a5db1ba3
Contains:
3 sableye
at least one eviolite
More than enough darkness energies.
some dark patches (2 I think)
and dark claws (again, I'm pretty sure 2)
Some deck promos
A lot of crappy bulk cards.
And you can feel free to PM me, I have some of these cards extra.