You can tease him up with it and ask for a position(sit/down/fuss position/recalls) and reward him when he gives you what you ask.
There are many toys you can tie on the end too...ball on string is fun, just remember to keep it low so pup isn't jumping up.
And when pup is teething, tug should be limited.
I use a flirtpole with a fox tail at the end of it as a tracking reward for my dog. It built enthusiasm for him, way more than a jackpot of food or a ball does.