Please welcome Eyoyo Underwater Fishing Cameras.https://amzn.to/3siEgXn
Like Trapper noted...the springs out of lighters are pretty good. I like Frabill's Panfish Popper springs; however, the rods I use (Arctic Blues by Schooley) have a very small guide at the end of the rod and the plastic piece of the panfish popper won't fit in there (I could probably get it to fit but I am afraid of snapping the rod). I buy a multi-size pack of heat/shrink tubing at the hardware store. I pull the spring out of the Panfish Popper plastic holder and shrink tube it on my rods....works great.
My favorite spring bobbers are the St. Croix bobbers. You can also get spring bobbers from Marmish and yourbobbersdown which can be put on your rods. IMO either are better than HT or frabill springs.
Which Fiska bobbers do you use and do you just tape them on?http://www.yourbobbersdown.com/YBD%20CATALOG%202008_2009.pdf