3 Sonic pens. A regular one, and 2 clear varients. But why pink?
It is not known what type of pens these are, but they appear modern, more in the Sonic X or adventure era, than anything before. They could be gel pens, and if so, one would hope they work better than the USA SA1 gel pen set that was released. Maybe the two colored figures indicate that they had matching ink colors. Do you click or twist the figure to use the pen tip?