Sensory eggs for a baby

I've been thinking for a while now as to how I might incorporate the theme of Easter into Isla's play. She's only just becoming able to sit unaided for a short while and is beginning to show enjoyment in play. I stumbled upon the idea of making textured eggs for babies and I thought I'd give these a try. The original activity can be found here: http://www.two-daloo.com/texture-eggs-sensory-play-language-activity/

Anyway, here you should find all the photos and details of our sensory eggs but the truth is, they just did not work for us. We didn't have a hot glue gun as the above post suggests you use and we attempted to make them with pva. The materials all slid off the eggs and I just became really frustrated with the whole thing and abandoned the idea. Rather than not make any at all, we made some adaptations. I roped Tommy (3) into helping me make these, as it would not only be a fun activity for him to get involved in, but it would also be a nice idea for him to make something for his sister.

We started by filling some plastic eggs (we bought ours from Hobbycraft) with lentils, peas, rice and salt. Before tipping in the salt, we made sure to tape up the holes in either end of the eggs, so that the salt wouldn't seep out. We then glued the eggs shut to make them safe for baby to handle.

At this point, we attempted to glue a variety of different materials to the outside of the eggs, but when this didn't work, we applied some brightly-coloured self-adhesive foam shapes to them.

If I had a hot-glue gun, I'd definitely attempt to make the sensory eggs shown on the webpage above. Mine don't quite match up to these but I'll definitely be giving them a go in future.