Idiom:

Recipe for disaster ( cause for trouble )

Hit the book:

Emboss
Insignia
Attach
Reflector
Scratch
Synthetic
Familiarity
Awareness
Souvenir

Private school students often have randoseru embossed with the school insignia. Kids also attach safety reflectors, personal alarms, mobile phone cases, and charms to their randoseru. You can buy clear plastic covers that slip over the bags to keep out rain and to protect the bags from scratches. Schools also distribute bright yellow randoseru covers so motorists can better see the kids.