They have those small thick rubber bands that they use for castrations that you can use to secure your reel. It was fairly inexpensive .
https://www.scheels.com/p/cold-snap-reel-wraps/18286900020.html?gclid=Cj0KCQiA7IDiBRCLARIsABIPohipXevmUvNUmsGj30DTC-MCGeTv1ev4RtdVHgQehmdiujhPOlIh8mcaApPJEALw_wcB