No, too late.
You need to pollinate as early as possible to give the plant enough time to grow and mature the seeds, at least 4-5 weeks.
By the time you force any of your plants to grow bananas, the females will be all but finished. If you are keen, forcing some male flowers then collecting the pollen to use for your next crop is certainly viable, as pollen will remain active for quite some time if kept dry. Just keep it in a dark, cool, temperature stable place, like a cupboard in a dark room and it will keep for 3 months minimum. Do not place it in the fridge or freezer, the moisture will destroy the pollen.
The time to pollinate your females is as soon as the first small "tufts" of pistils form and pollinating 4-8 branches at this early stage will provide 100-400 seeds easily. Use a very small paintbrush with short bristles (trim if necessary to about 1/8 inch) as pollen will stick more to Q-Tips than be deposited on the pistils. Pollen can be mixed 50-50 with corn flour to stretch it out if you have a limited supply, or even 10% pollen and 90% corn flour and pollination will still be normal. A seed only needs one pollen grain to land on a white, fresh pistil for successful development. Pollinate in a windless atmosphere if you want to control it and take notes of when and what was done. Also tie a bit of string to the pollinated branches to make identifying them easier. The female flowers can be spritzed with plain water an hour after pollen application and this will kill any remaining pollen and prevent it from fertilizing flowers you want to keep seedless. I always pollinate the lowest branches, this way you can harvest the top of the plant and leave the lower pollinated branches to finish maturing the seeds, if they are not ready at the same time of the main harvest.
Hope this helps,.............
Organoman.
(and very keen home breeder!)