I've been buying my MOP inlay markers from Woodenspoke on ebay. I recently took a look at one of his competitors, Bruceweiart, maker of lots of inlayed products, as well as ukes and guitars. He's in Taiwan, I think. Bruceweiart has some sets of 50 inlay markers available for $9 a piece, plus something like $7 shipping. I made a best offer of $6 a set for three sets. I expected I would be charged triple the shipping, but that still worked out to a lot less than Woodenspoke, which in turn is less than StewMac/LMI/Hana Lima Ia. Long story short, my offer was accepted and all shipping was waived. I got 150 5mm markers for $18. That ought to hold me for a while. I'll let you know what the quality is like after I receive them.