My sister had a pair of Optolyth 8x30 porros that were fantastic, but one side went fungus on her. Im looking into getting them worked on...but she needs some replacements...ASAP.
They have a pair of
7x35 Fuji Meibos
8x25 Nikon Sportstar III 8.2 degrees FOV
8x30 Japanese classic porro with no coatings (oldest son is using age 9)
Kids are aged 2, 7, 9
She really liked the light weight and smallness of the Optolyth 8x30s (about 15 oz.s IIRC. The Optolyth had great optics too.
Im thinking
Leupold Yosemite 8x30
Bushnell Excursion 8x28
Nikon Monarch 8x36
and another pair of Nikon 8x25 Sportstar III 8.2 degrees.
Perhaps a Pentax 8x24 UCF WR?
Or I tried some Nikon ATB 8x25 reverse porros today, and they seemed pretty good.
Or maybe some Pentax Papillos 6.5x21?
What say you?
Trying to keep costs down as well.
Greetings,
I like my wife's Yosemite 8x30's a lot. They seem almost as sharp as my 8x32 Nikon SE's in the middle, although the sweet spot is smaller on the Yosemite. I also liked the view of the 6x30 Yosemite's as well, but my wife seemed to like the 8x32 better, so that's what she got! 
The price is excellent, and the smaller IP distance makes them good for most children as well.
Regarsd,
Gary
The Bushnell Excursion 8x32 regular..not EX...will give more full bino feel than 8x28, and does not cost much more. The 8x28 will work too.