Sweets are the mainstay of Raksha bandhan fare. In Maharashtra where Raksha Bandhan is also known as nariyal purnima, coconut stuffed karanjis, burfis and laddoos are the standard dishes.
To make these classic dishes more interesting you can try sandwiching a layer of well-tempered white chocolate and walnuts between two layers of the coconut burfi mixture. Once set, cut into diamond shapes, serve and then bask in the glory of praises from your siblings.
For an easier but just as fancy recipe, coat your store bought coconut laddoos with some tempered chocolate add a little detailing and you can make them look like cute, mini coconuts.

Go ahead and put together a great feast for your family. You could prepare dishes that engage everyone at the table. Try making a Laksa or a Khau Swe, these are great because once you make the basic broth, you can experiment with the accompaniments to go along. Peanuts, fried onions, fried garlic, meats, veggies, noodles whatever suits your taste, so there is something for everyone.
You can also try making a cuppa biryani for each person at the table. Layering a biryani in individual cups will require a little pre prep, but you will surely feel like a star when you serve your guests with personal, customized little pots of biryani.

Don’t worry if your darling brother is not in town for rakhi this year. Send across your love along with the rakhi in the form of sweets.
Homemade chocolates, sweets with desiccated coconut, delicious imli ki goli, dry fruit chikkis, etc. all make for pretty, edible rakhis and will last for a few weeks at least. Your brother can store these for a few more days and feel the love at least till the rakhis last.

Happy Raksha Bandhan!
Happy Cooking!