If you are looking for combo set for Brother, Bhabhi and Niece then go for their rakhi combos. When I ordered from Amazon, they had 6-8 combk sets in all ranges. I opted for 179Rs set where I got 1 kid rakhi along with Lumba and 1 brother rakhi. Brother rakhi had Ganesha on it and fir kid rakhi, chhota bheem. You may also get good lumba in this range which your sister-in-law can hang onto her bangle.
Happy Raksha Bandhan!!!
Happy Raksha Bandhan!!!