@nayt70 oh they exist I'm telling ya, considering your daughters are probably heavier than a weighted vest. I'm on the skinny side though so after some months with decline push-ups i was being told my arms are getting bigger.
@nayt70 congratulations on your journey. you could easily progress from there if you start doing decline push-ups instead of normal ones. you could get a weight vest later and do weighted push-ups but you'll also have to do some serious lower body exercises to balance your look. all the best mate!