Possible Clues:

• Slippery slapstick props
• Yellow slippers?
• Skins that can be marinated and fried to make vegan "bacon"
• Throwaways from fruit eaters
• Fruit skins you might trip on
• Some slapstick props
• Slip causes, in cartoons
• Tropical fruit discards
• Skins
• Litter in monkey cages