My daughter can be a bit loud in the morning while Daddy is still sleeping. :) I designed the alarm clock image in Photoshop just using basic shapes, then traced the shape in Silhouette Studio.
She also is completely obsessed with her teddy bear. (Seriously, it's like velveteen bear already in like 6 months.)
This one is for my niece who loves the song.
Using heat transfer vinyl (HTV) is actually really easy. Silhouette Studio has settings to cut HTV (one for the matte kind and one labelled "flocked" which I use for the glitter). The most important thing to remember is to mirror-image your design before you cut (use the "flip horizontal" feature). The HTV has a plastic coating on one side which is adhesive. This side faces down on your mat when you cut. After you cut your design, you have to "weed" the design by removing all of the pieces of HTV that you don't want on the shirt. I use a small tool I purchased for scrapbooking that has a sharp tip like a needle. Some people use those pointed tools that dentists use to clean your teeth.
Once your design is weeded, you should be able to hold it with the clear plastic coating facing you and see the design correctly. I usually hold it up to the light to make sure I haven't missed any small pieces. Then you just need to line it up on the t-shirt and rub the adhesive side down onto the shirt. I use my iron to heat the HTV, although people who do these and sell them often purchase a heat press. I've just been making them for myself and people I know and have no plans to expand my shop with vinyl items, so I just use my iron. I put my iron on the cotton setting (the hottest setting), and have all of the water emptied out. I then put the shirt with the adhesive/HTV on my dorm-size ironing board (you need a really hard surface, a regular ironing board is not recommended). Finally, I cover the whole plastic sheet with a piece of parchment paper. (I do this because the first time I tried without, I melted the vinyl and adhesive right onto my iron and ruined the shirt I was working on.) Then I iron on top of the parchment paper. If you don't have parchment paper, you could probably just use another piece of fabric.
I press the HTV with a lot of pressure for about 30 seconds, which is usually plenty. Then I remove the parchment paper and slowly peel the clear plastic coating off. If using matte vinyl, it should look like the vinyl has almost melted into the texture of the shirt, but you definitely don't want it to be burned. When you pull off the plastic coating and the design is still hot, you can kind of pull the shirt a bit to help the vinyl move with the stretchiness of the shirt. I love that the vinyl doesn't rip or tear!
When washing these, I generally wash them inside-out and then hang dry. I have forgotten to do both before, and my shirts have held up perfectly fine, but those are the recommended directions.
Let me know if you make any items with HTV or have any questions about using it. I am far from a pro, but I have done these several times now, so I should be able to help.