Grimace Shake Price And Availability 2024. And with him, he brings along the new grimace shake, which should be. The grimace shake is a vibrant purple shake with a unique berry flavor that was released by mcdonald’s.

The grimace shake is now available at mcdonald’s locations across canada for a limited time. The grimace shake costs £2.69 for a medium and £2.99 for a large, although.