Some plants don't need bees to pollinate, air currents (natural, or by oscillating fans) are enough to circulate the pollen from flower to flower. But in cases where that does not work, hand pollination is an option. Toothpicks may work, but a small soft paint brush (like for water coloring) works well (the smaller, and softer the better). There is also another option called "
Blue Bottle flies", they don't pollinate because they need the pollen. They like fresh meat like all flies, but they are attracted to the nectar of flowers and pollinate as they rest from flower to flower.