Pieology is offering pizza/pies for $3.14 when you join their eClub at participating locations.
Exhaustive list of participating locations in wiki below.
"Even Einstein knows being in Pie Life infinitely pays off.
Sign up for our Pie Life eclub today to receive an exclusive offer on Pi Day.
$3.14 Custom Pizza on Pi Day 3/14!
Please fill out the form below to receive this special offer in your email. Plus enjoy other exclusive perks that come with being a part of Pie Life, like FREE pizza on your birthday!
Valid at participating locations for Pie Life members only. Must be 13 and over to join/participate. We respect your privacy and will never rent or sell your information. By providing your email address you are opting-in to receive emails from our company and you may ask to stop receiving emails from us at any time. Offer not valid at the following locations: Tucson, AZ; Rancho Mirage, CA; San Diego (Garnet Ave), CA; Los Angeles (Citadel Outlets), CA; Happy Valley, OR; Tualatin, OR; Portland, OR; Pleasant Hill, CA; Fairfield, CA; Las Vegas, NV; Santa Rosa, CA; Vacaville, CA; Rancho Cordova, CA; Centennial, CO; Folsom, CA; Honolulu, HI; Escondido, CA; Carlsbad, CA; Long Beach, CA, Redlands, CA; Rancho Cucamonga (Foothill Crossings), CA"