People are being advised to check their attic, and other storage areas, for potential collectibles and hidden gems.
It comes amid a surge in interest in electronic game consoles.
Associate director and auctioneer at Herman & Wilkinson, Ross O'Sullivan, told The Home Show a number of things are unique - and valuable - to Ireland.
"Great things that we see in Ireland that are of value to international markets - you'd see a lot of the MB board games.
"So we're looking for the early issues of them that are in decent condition.
"Another thing as well we have in the auctioneers at the moment loads of collectable little toy cars in their boxes.
"We probably have about 400 cars coming up for auction in the next three or four months.
"And another thing that is massive in Ireland is diecast models of soldiers.
"The soldier sets and soldier regiments make a fortune - and they're still something that's desirable in the Irish and the UK market, rather than the wider global market".
And Ross says gaming has seen an unexpected increase in demand.
"There's a slight increase in the gaming collectibles, that we never would have seen before.
"That's a sector we would have known nothing about previously".
'An awful lot of profit to be made'
He says people sell and buy such items for a mixture of nostalgia and profit.
"I think for any toy collector they always start off with a nostalgic attachment to a certain toy, or a certain sector of toys, that they like to collect.
"But on the other hand, there's an awful lot of profit to be made in the collection of toys - and also the marketing of toys as well.
"The toy companies themselves, on a larger scale, like to boast the fact that their toys are collectable - or can be collectable - you can see that with American girls dolls, for example, in America".
He says some people buy them to simply pass them on.
"There's certain collectors who buy toys from their era that they would have played with and they would have liked.
"And then there's also people who buy toys for their children or their grandchildren, to show them what they played with when they were kids."
He says one customer purchased a Bosco trike for his nephew.
And Ross says the condition of products is important, but this can be difficult in Ireland.
"You do have a lot of collectors who would have bought Barbie's or would have bought Star Wars figures - and they would have kept them in the box and left them untouched.
"But it's very rare to see in Ireland, because everyone hands something down in Ireland.
"So often brothers hand their toys down, sisters hand their toys down, and they're played with by three, four sets of kids".
