Blanket help

My son is 2.5 years old and is VERY particular with everything. He has a baby blanket that is plush grey with zig zag pattern on it (cloud island brand). Every night he “needs” this blanket to cover him and won’t let any other blanket touch him. The issue is my 2 year old is growing and the blanket isn’t. The blanket can no longer cover all of him he tells me blanket is broken and tosses and turns all night. We have tried introducing bigger new blankets and ones that look like his grey blanket but he gets mad and kicks them off. Has anyone been in a similar situation? What did you do?