Need a clicker (dexterity issues)

Hello, I have a weird problem and could use some suggestions. I have some dexterity issues in my hands that make it difficult for me to grip/click most of the clickers that are on the market. What would really help is a clicker that’s shaped like a tube/clicky pen (that I can wrap my fingers around and click the end with my thumb) instead of something flat or teardrop shaped. Is there anything on the market like that? Or even just an actual pen that’s sufficiently loud to substitute.