Canes have Hudson Elynuik who looks like they can't sign and will re-enter the draft. Florida has Mascherin who they can't sign and will re-enter the draft.
Elynuik: 6'5", 195, 3rd round 2016, 31G, 86P in 71 games this year
Mascherin: 5'9", 197, 2nd round 2016, 40G, 86P in 67 games this year.
Maybe trade one for the other and hope the team that receives them can sign them? At this point, it seems like both are destined to go back into the draft though so probably not realistic.
Unless a team thinks they can get him signed, not sure any trade is viable.