A spin-off judge and fantastic spinner friend of mine always says "You can't have too many bobbins!" She makes the most wonderful art yarns and plies so many neat singles together, so her bobbins do get a lot of play:)
SUPER JUMBO E-SPINNER & COUNTRY SPINNER (1 or 2) take really large bobbins. Choose unfinished or lacquered. They are listed in the drop down box about halfway down the list.
This Lazy Kate is made specifically to hold 2 of the Country Spinner/Super Jumbo bobbins: