Acorn of Thankfulness

This magical acorn appears to be made of amber or glass and shines brightly when sunlight hits it.  It can be used once per day to create a fifteen foot diameter dome around the acorn that protects those in the circle from normal elements, such as rain and snow.  This circle lasts for 8 hours and moves with the acorn. 

This magical dome does not offer cover, nor does it obscure you and those beneath it from sight.  

Notes: Utility