What about a Modern Horizons Sealed deck?
We still have a stock of MH2 bundles. So lets open and do an event. The content of the bundle will be given away randomly.

Start : 12h00
Entry Fee : 45euro
Prizes :
For the top standings
-1 MH2 booster/2players
-1 promo booster/5players
Random give aways
-MH2 D20s (random give away
-MH2 Packs of basic lands (20foils + 1 promo)
-MH2 bundle boxes