66 is for me 2 red cherries with a leaf 
I do like your image too - Bug Eyes and Antenna. Nice.
69 is an interesting one, A chinese Yin Yang, which has the shapes of 6 and 9 stuck together in a circle.
I used to do martial arts, so as soon as I first thought of 69 all I could see was a black and white yin yang symbol, which I can immediately picture, these are very strong images for me because of its simplicity.
I am creating this for the adults, initially for myself, but I like the idea of using this for the children as well. Perhaps that is something I could look into improving because I like the idea of using animals and objects which would grab the attention of the children and make it a lot of fun to learn.
The Shaper System
I’ve done a lot of search on the internet, google, books (I have 15 books on memory training), videos, images, forums, blogs etc and I could not find any source that listed all 110 numbers in the number shape format, I’ve also done a search here on this forum and no results for number shapes other than the usual 0-9. I’m not sure if anyone else is using it, if so I couldn’t find any source of it.
So I’ve decided to coin this as “The Shaper System”
I’ve been working on this for a few months, most of the images I created with the number shapes are really strong, however I still have a few that is similar to the other numbers, so I wanted to brainstorm some ideas using the forum, but I’m not sure if anyone else is using such system. I already have about 60 of them which are instant clarity images, the other 50 are not very strong images, so I’m still in the process of brainstorming and checking out shapes of all sorts of objects that is as close as possible with not a lot of exaggeration to the numbers I have left to establish.
With my system I also use the Letter Shape images which I have already created, which was much easier to create as there are only 26 letters. I can see each letter as an image immediately.
I’ve also been using the Shaper System for the binary digits and playing cards as well. Amazingly It works for all.
There is much more to it then just using the shaper system for creating number shapes, I am combining a few different techniques as the whole system which includes the dominic system characters as my palaces which in itself also uses the shaper system!
I did find that I was much faster in image recognition and much faster in creating the action between two objects using the shaper system than the dominic and or the major system while memorising, the actions of each image are almost self explanatory when memorising.
For example 11 and 13, I see myself with a drumstick in each hand, and I’m playing drums on a pregnant woman’s belly. It is very easy to encode, it’s almost a self created action.
If it was the other way round > 13 + 11, then I see a pregnant woman playing drums on her own belly using the drumsticks.
Even tho I’ve coined this as The Shaper System, I have yet to finalise the whole thing, but I’m 3/4 way there.
I do have a spreadsheet of the images I’ve created in a text format, I’m also in touch with a graphic designer and a photographer for the exact images I’d need, but I’m waiting to finish them all first and have all the images in the way I want.
The images I am still working on;
30 - 39
50 - 59
70 - 79
80 - 89
90 - 99
I have weak images for the above, with practice I can memorise them even tho the images are not strong, however, until I find some very strong images I’ll just have to keep trying. I want this system to be as simple as I can possibly make it but very effective at the same time.