Possible Clues:

• Rain-__ gum
• Rain-__ bubble gum
• Rain-___ (gumball brand)
• Slo-___ fuse
• Rain-___ (bubble gum brand)
• Slo- — fuse
• Slo- -- fuse
• Rain-__: bubble gum brand
• Slo- -- (kind of fuse)
• Use bubble gum, in adspeak