Just keep on walking then you will come across one

OK - if you keep walking your dogs - there is a very low chance that you will get a rare item out on a walk! Only once in a blue moon this will happen. There is a Game Boy chip that can be put into the bottom part of your DS where you can click on ''All Dogs'' and ''All Items'' to receive all dogs and all items lol! Try and get a hold of one! I think people sell them on eBAY - thats where my friend got hers! Hope this helps! X

try putting the lucky collar on and the clover clock. before you go on a walk feed ur dog the dog food can or natural dog food, give it milk and a jerky treat and then go for a walk going thru as many '?' as possible.
P.S. u dont need a chip