Consignment/Swap shops City Centre/Nth Co Dub

[Sock Monster]

My question is: does anyone know of any consignment / Swap shops in North County Dublin

My mother has an outfit that she bought for my brother's wedding last April, which she is never going to wear again.

I know your probably saying just give it to Vincent de Paul but in today’s economic climate . . . . . . . She wants to sell it to a swap / consignment shop as the outfit cost my Mam over 500 Euro. With the proceeds she intends to buy a new winter coat. Possibly in the same shop / another shop depending on how much she gets (I know counting the chicks before they've hatched)

Anyone any suggestions – I don’t really like selling stuff on ebay (got stung twice selling and buying so never again)

Thanks