What are some popular Haitian snacks?

I am a pediatrician in the United States and our community has a growing population of Haitian immigrants, may of whose children I take care of. I already keep a small supply of various over-the-counter medications and hygiene items (soaps, toothbrushes, etc.) to give out to families who cannot afford them but I would like also to have a few snacks or treats that I could share with my families when they are having a particularly difficult time. I live about 2 hours away from a bigger city that has an international market and occasionally make stops there. They do have a section that seems to be Haitian but I had no idea where to start the most recent time I was there. Are there certain snacks (for example plantain chips) or food brands that are popular treats for children in Haiti? Ideally I would be looking for packaged, non-perishable food items. Many of our families here are living in hotels and so do not have access to full kitchens. I have already purchased several cans of Nido (powdered milk) as many of our families have indicated a preference for this. Any other ideas? Appreciate any guidance!