Doyle Security 100 Year T-Shirt Design

We want something fun and creative that our employees will actually want to wear outside of the office. We're trying to hype up our 100 year anniversary. So it might be subtle and elegant or unique and creative. We have a logo that should be used in some way and anything on our website or social media is also fair game. Integrity to brand color is not super important. Our website is http://www.godoyle.com. facebook.com/GoDoyle also has tons of images that could be used.

No image or style is mandatory to use. Looking for creative ideas!

Some background on our company:
We were founded in 1919 by John A. Doyle in Rochster, NY. At that time we were solely a private investigations company. Through the years we’ve evolved in to other areas of business including private guard services, armored cars, locksmithing, facility management (cleaning), alarms and alarm monitoring. We’ve been family owned and operated for 5 generations.
We provide advanced intrusion detection systems, fire detection systems, access control automated locking systems, video surveillance and other means of protection. Through our locally owned response center we monitor our customers homes and businesses and alert authorities and the customers if ever anything should happen. We’re very proud of the service that we provide to our community!

Update on 7/12: Thank you everyone for your submissions thus far! We have some great options on the table but we're still open to other concepts. As we approach the final day I just want to offer some final guidance. At this point we've seen quite a few examples of the 100 year logo being simply re-arranged and repackaged in ornate borders. There are some really nice looking versions of that but we're hoping for some designs with a little more creativity.

The 100 year logo should be used to some extent but it's not mandatory.