"Since one good turn deserves another, what can I do for you ?" asks The Door Knob to Alice (in Wonderland).
Imagine having The Door Knob in your front door. One who welcomes visitors and shoos away trespassers. He looks cute but I would still settle for one which does not talk.
A unique door knob can make even the most plain-looking door attractive; therefore, investing in a decorative door knob is a nifty idea. One does not have to spend big bucks for a unique and quality door knob. Look for discounted sales at home improvement and hardware plus stores. You might also find great one in antique shops or garage sales.