Buster rhymes with:
adjuster, bluster, bruster, cluster, custer, duster, fluster, guster, huster, juster, kuster, luster, lustre, muster, shuster, thruster
Buster sounds like:
babysitter, backdoor, backwater, bacteria, basketry, bastyr, baxter, bester, bigotry, bistro, bookstore, booster, boster, bostra, boughter, buchter, bustier