Line 2 quarter-sheet pans with wax paper. Working quickly, portion out the ice cream using a 1 1/2-tablespoon scoop. Line up the scoops, 12 strawberry on one sheet pan and 12 pistachio on the other, and place in the freezer for at least 2 hours.
Twenty minutes before you are ready to roll the truffles, add the chocolate and coconut oil to a bowl set over a pan of simmering water and allow it to melt and become smooth, 2 to 3 minutes. Mix together.
Place the pistachios and red jimmies in separate bowls.
Remove the strawberry ice cream from the freezer. One at a time, drop the ice cream into the chocolate, then remove with a fork and place back on the sheet pan. Immediately sprinkle on the jimmies. Repeat with the remaining strawberry ice cream scoops and return to the freezer.
Remove the pistachio ice cream and repeat the process above, immediately sprinkling the truffles with the pistachios. Return them to the freezer and allow to firm up, about 2 hours. Transfer to a freezer container and freeze for up to 1 month.