Lyst Widgets
Lyst Widget
Use this widget to easily show your lysted items on your blog or anywhere else on the web.
Get this widget
How to add on Blogger
Login and click on Layout.

Click on Add a Gadget where you want the widget.

Find and click on HTML/Javascript.

Paste the code you copied into the content box.

Click on save.

That's it!
How to add on Tumblr
Login to your Tumblr account, then visit your blog and click on Customize.

In the sidebar, click on Edit HTML.

Search for div id= in the text using the search tool.

Now comes the hard part, because every theme is different. Paste the html text you copied in the appropriate place.
For example if you want to the widget in your sidebar, try searching for: div id=sidebar, and paste the text below it.
Click on Update preview to check how it looks.

Click Save.

That's it!