For everyone asking about the black cotton swabs, you can get them on Amazon. They're more expensive than the Q-tip brand, but they're pretty good. There are a couple options, but I have these now:

Daiso Japan Black Cotton Swab 200pcs Spiral head (1) https://www.amazon.com/dp/B01MRYER61/ref=cm_sw_r_cp_apa_OpZ3Bb9TXMCD7