Need two VERY light discs
 

My son's 4th BDay is coming up in a couple weeks and I'm looking for two discs to get him started on the road to his DG addiction.
Want a putter and a driver/mid-range as light as I can find.
If anyone has a used disc (new is good too) or two that might fit the bill, please LMK.
$5 a disc is all I can afford.
Thanks.