Woot offers RV Cover Rescue | RV Gutter Spout Cover System | Protects Your RV Cover From Gutter Spout Damage for $9.10 (orig. $24.99). Free shipping for Prime Members.

Product Description:
Finally there is a new solution to an age old problem that actually works! The RV Gutter Spout Protector is a simple gutter spout covering system that protects your RV cover from gutter spouts damage. This durable product installs easily from your RV rooftop in minutes, so you don't have to do a balancing act on a ladder from each corner of your motorhome. The RV Gutter Spout Protector completely blocks the destructive effects of gutter spouts, so you can say goodbye to inferior home remedies forever! 

• Very adjustable
• Protects gutters
• No need to balance on a ladder
• Easy to install