Help creating spikes on curved surfaces

I'm creating a part of a high heel that requires me to add some spikes on the surface, the problem is that it's a curved surface and everything I've tried hasn't worked. I'm not very advanced with solidworks, so maybe someone here can help me. I have attached a picture of what it's suppost to look like, it doesn't have to match it, but it has to soort of look like it, I have also attached the part. If anyone can help, I'd be very grateful!

SolidworksParts And Features