These are listed by frequency and type. Crystals followed by canned oscillators.

19.968MHz Crystal $1.39	18.432MHz Crystal $1.39	12.096MHz Crystal $1.39	3.579545MHz Crystal $1.39
1.84MHz Crystal $1.39	32.768KHz Crystal $1.39

If you are looking for a hard to find crystal, please drop us a note. We have many surplus sources that have some very odd values available.