Boiling Springs is a haul from Hummelstown and TCO is hardly worth the drive unless you plan to fish the Breeches. Bass Pro unless you want to spend all your time driving around.
I agree to try and reach out to Bob Clouser. I'm sure the shop is still there, just not open for business but who know what would happen if you called and asked if you could stop by.
If nothing else, you may be able to buy one of his books & have him sign it or buy a Clouser tied Clouser.
Closer to home for drinks & eats:
The Warwick Hotel - Really good food & drink.
Bill's - Excellent local breakfast spot!
Quentin Tavern - a bit east in nearby Quentin, PA but a great pub with an outdoor deck that is popular with the locals.
Other attractions: TMI