Questions about "items giveaway"

https://www.steamgifts.com/discussion/ts4tF/the-official-coupon-thread

You can not make giveaways for them.

But you can certainly ask if people want them and then give them to them.

From the official and documented SG guidelines:

https://www.steamgifts.com/about/guidelines

Giveaways
Creating
All giveaways should be for Steam redeemable gifts or Steam redeemable keys.
Beta keys, guest passes, and coupons should not be given away.

But you can drop coupons in the official coupon thread or make a thread of your own or give them to your buddies.