So this cool shirt company called Breaking T that works with SBN quite a bit has made these Karlito shirts in honor of Karl-Anthony Towns being drafted first overall.
They are high quality shirts that look great. You can follow this link to get more details and/or order. The shirts are available in all sizes from Small to 2XL, and are $23 ($24 for XL and 2XL).
If we do well with this one, more designs (including a specific CH shirt) could come in the future. Thanks.