Irish Shamrock Lucky Coins. This pack of lucky coins is double sided, one side featuring a large shamrock with the luck coin insignia, the reverse side has many shamrocks and says share the luck! each coin is about half dollar sized, has deep ridged sides and is finished in brilliant metallic chrome. This is the perfect give away at bars as lucky keep sakes or free drink vouchers. The coins also make a nice decoration to liven up the crowd at your home party or event.