My friend Johanna (a DG) had one of her Anchora magazines lying around , and you can purchase merchandise in there.
One thing was a baseball cap for fathers that said "I'm a Delta Gamma [in the letters] Dad". So her Dad saw this and said,
I'm a Triangle Hook Dad!
Yes, Triangle Hook indeed!

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On another note, do you ever get Rushees who are not that well informed about Greek life so they get confused between name pairs such as:
Alpha Chi Omega and
Chi Omega?
Alpha Delta Pi and
Alpha Omicron Pi?
Alpha Sigma Alpha and
Alpha Sigma Tau?
Delta Gamma and
Delta Zeta?
Phi Sigma Sigma and
Sigma Sigma Sigma?
Just wondering about that.....