Here is the listing for the bead cores on ebay, I bought them from the seller 8 Seasons so if this listing is sold you can find it again: ...
by Florencia Vallejo
by Jenny W Chan - OrigamiTree.com
by Maison ZiZou
by silvarruxx craft
by jennibellie
by ThePaperPassion
by Disney SurprizzKidz Toys