They are very in.
http://vi.vipr.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=172098512193&t=1496271509000&tid=10&category=137839&seller=nivsbling&excSoj=1&excTrk=1&lsite=0&ittenable=false&domain=ebay.com&descgauge=1&cspheader=1&oneClk=1&secureDesc=0
https://www.ebay.com/itm/LARGE-XL-10MM-Football-STONE-beads-5-DECADE-Rosary-GIFT-Vintage-Cross-Necklace/391631093622?hash=item5b2f083f76:g:tvwAAOSwlfxXFcIA
Rosaries are not necklaces. They are prayer beads. I don’t know why you think they are “in” just because a pic is on eBay. People with arthritis need the bigger beads because they can’t get their fingers on the smaller ones.