Check directly with Molten Aura ... the may have some or have "abnormals" which are just funky shaped rods.
They also have alot of cool pictures on their website. I need to look but both Marilyn Ure and Keri Mullen use it in their work. Keri does mostly marbles ... marilyn has fab octopi!!
Looks like MAL has it in stock ... both regular and abnormal.
https://moltenaura.com/our-glass