Snowman Disguise vs Snowman Helmet

[Pancakepanic]

The Snowman Helmet was a quest reward on the first winterfest event and it also occasionally shows up in Deal of the Day. The Snowman Disguise can be obtained from one of those packs in the platinum store. The only difference between them is that the disguise gives no armor, while the helmet gives 1.

How often does the helmet appear in DotD? I have never seen it.