Recently I came across a video on youtube, where the lady made her own silicone molds using bathroom sealant.
THIS ONE... is the video that I watched, but I noticed that there are lots.
I bought just a small tube of white bathroom sealant to try out this method, I got mine in the £1 shop. In the video the lady says to mix this with a powder of your choice, baby powder(talc), baking powder or cornflour. This is to take away the sticky of the silicone, and make it form into a dough like ball.
I used cornflour, as that is already in my craftroom.
Coat your hands with a little vaseline to prevent the silicone sticking to you.
I emptied the tube onto a non stick mat, and poured on a generous amount of cornflour, then started to mix it. Just keep adding cornflour till it forms a non sticky dough.
I then rolled it into a ball, pressed it down, and immediately pushed in my embellishments. I rubbed on a little vaseline to each embellishment before pushing into the 'dough'
Then leave aside to set. The video says 12 to 24hrs. I would say that mine was dry within about 4hrs, but it was very,very warm weather. So best to leave it longer just in case.
Once set, the embellies popped right out, the only one that stuck a little was the one that I forgot to coat in vaseline.
I fine the quickest and easiest filler to use is hot glue, and this super hot glue gun from PaperArtsy is perfect for this job. Fill them up and leave them to set.
Hot glue can get a bit stringy, don't worry those bits can be trimmed off.
Just like a regular silicone mold, you just flex in your hand and the embellies pop out.
Here they are as them came out, some have extra bits of glue that need trimming off.
After trimming and a little sanding.
I painted each with a little Fresco French Roast You can see the details starting to show now.
But look at how they really pop once you add Treasure Gold..
Close up of a couple..
Totally impressed with this technique and I will definitely do this again.
Edited to add.. of course you don't have to use a hot glue gun, you could use UTEE, beeswax, friendly plastic or paperclay. Whatever modelling medium that you have.