There are 3 tabs in shupe shop contain items that can be purchased with Red Sparkly Stone.
1. Ornaments - Cardback, Avatar, Border, Shupe leader's item
2. Keg - 44 red sparkly stone can buy 1 ultimate keg
3. Packs - there are 4 packs here which 3 of them give a specific card, title, border and avatar while one pack will give resources
I just realize that I can purchase the resources pack multiple time. This pack is 20 sparkly stone and give me 50ore, 40scraps and 30meteorite powder. I'm not sure the Smashy keg price tag is incorrect or not because 44 red sparkly stone is more than 2 resources pack while resources pack also give me extra scrap and meteorite powder.
anyway, I'd like to thanks CDPR. This event is much much better than the previous event which give players a lot of Cone Pine. That event players can unlock ornaments with Cone Pine while the excess Cone Pine is useless and was removed after the event end. This event allow players can spend excess red sparkly rock to get more resources. While new players who does not want to have cosmetic they have a choice to get resources instead.
Thank you