Brinkmans B & T in Philly has them.
Tacony-Palmyra Bridge, bear right at the 2nd turn at foot of bridge onto north bound State Rd. Continue north State Rd for about 2 miles to Linden Ave. Shop is on NW corner, Linden and State Rd.
Last time I bought there (last Thursday) they were $6.75 doz.
215-632-0674