I have shared several baby registries offering free gifts in the past. Usually they offer up something without stating it directly.

Join the Babies R Us Baby Registry. They offer tons of benefits for making one.

You can get up to 10% cash back on purchases from your regisry. THey offer 15% completion discount as well as price matching.

After you register I suggest going in to your nearest location to see if they have gift bags available. Searching around I found they do offer this but I have yet to be able to confirm it myself.