I make large pom-pom/tassels for our luggage. I make them out of flourescent orange yarn for ours. You can see the luggage coming a mile away. I have made them for others in our traveling group too. I use a different color of flourescent yarn for each family. I've used pink and green and yellow so far. When making them I braid 6 strands together to make the part to tie to the luggage handle. It makes it very strong and havent lost one yet since I started braiding them.
Our friends all appreciated them and havent taken them off their luggage yet. Some have been used for several years now.
Theres just too much black and navy luggage out there. I now buy bright colors to replace old and broken pieces.